Probability $ Statistics

Probability Questions & Answers 0 - ANSWER: If you spin the spinner once, what is the probability that you will get a number greater than 8? 1/10 - ANSWER: A spinner and a fair number cube are used in a game. The spinner has an equal chance of landing on 1 of 5 colors: purple, blue, green, white...

Probability of Inheritance Questions & Answers In peas, yellow seed color (Y) is dominant to green seed color (y). Which describes an organism that has nonidentical alleles for seed color? - ANSWER: Yy and has yellow seeds Purple flowers are dominant over white flowers. A heterozygous purple flow...

Theoretical and Experimental Probability Questions & Answers A briefcase has a three-digit lock code that does not include zero as a digit. What is the probability that the lock code consists of all even digits if the same digit is not used more than once in the lock code? - ANSWER: 24 out of 50...

Probability Questions & Answers 90% of Dr.William's patients end up with20-30 vision or better. Find the probability that exactly 5 of her next 8 patients end up with20-30 vision or better. - ANSWER: The probability is 0.0331 this how to do it A 48-year-old man puts $3000 in a retirement ac...

Probability Questions & Answers A coach chooses six out of eight players to go to a skills workshop. If order does not matter, in how many ways can he choose the players for the workshop? - ANSWER: 28 Miriam is visiting five friends in her neighborhood, Louise, Mike, Nicole, Oscar, and Pascal. I...

Basic Probability Questions & Answers A bag contains 4 yellow, 2 red, and 6 green marbles. Two marbles are drawn. The first is replaced before the second is drawn. A random variable assigns the number of red marbles to each outcome. Calculate the expected value of the random variable. - ANSWER: ....

Probability Questions & Answers (It has been estimated that about 30% of frozen chickens...) The mean and standard deviation of the number of contaminated chickens in a crate are - ANSWER: mean = 7.2 , StD= 2.24 (It has been estimated that about 30% of frozen chickens...) The probability that a...

Probability Questions & Answers combination - ANSWER: A selection of a group of objects in which order is not important. complement of an event - ANSWER: All outcomes in the sample space that are not in the event. compound event - ANSWER: An event made up of two or more simple events. conditiona...

Probability Questions & Answers A = - ANSWER: P (A) = A' - A complement/prime - ANSWER: The complement of event A is the event that event A does not occur. It consists of all the outcomes that are not in A. The sum of the probabilities of A and A' must equal to 1 P(A)' = Additive rule for m...

Conditional Probability Questions & Answers A bag contains one red pen, four black pens, and three blue pens. Two pens are randomly chosen from the bag and are not replaced. To the nearest hundredth, what is the probability that a black pen is chosen first and then another black pen is chosen? -...

Probability Questions & Answers Event - ANSWER: An outcome or set of outcomes of an experiment or situation. Experiment - ANSWER: The collection of a number of trials. Experimental probability - ANSWER: The ratio of the number of trials resulting in a favorable outcome to the total number of tri...

Geometric Probability Assignment Questions & Answers A point is chosen in the circle at random. Determine which of the statements are true. Check all that apply. - ANSWER: It is unlikely the point is in region A. It is impossible for the point to be in region H. It is certain that the point wil...

Probability and Two-Way Tables Questions & Answers A fast-food restaurant kept information about the drunks that were ordered along with the different-sized kids' meals, as shown in the table. Which statements are true? Check all that apply. - ANSWER: Milk was requested for 16 of the large-size...

Properties of Probability Distributions Questions & Answers A family has two children. If B represents a boy and G represents a girl, the set of outcomes for the possible genders of the children is S = {BB, BG, GB, GG}, with the oldest child listed first in each pair. Let X represent the number ...

Probability Questions & Answers 1 / 120 - ANSWER: A gambler places a bet on a horse race. To win, she must pick the top three finishers in any order. Ten horses of equal ability are entered in the race. Assuming the horses finish in a random order, what is the probability that the gambler will wi...

Simple Probability Questions & Answers 0 - ANSWER: probability of randomly selecting a month that starts with a G 1 - ANSWER: probability of rolling a number less than 7 on a 6-sided die 1/12 - ANSWER: probability of randomly selecting a month that starts with an F 1/13 - ANSWER: probability of ...

Compound Probability Questions & Answers 1/10 - ANSWER: Find the probability if you pick one marble, don't replace it, then pick a second marble: P(black, striped) 1/10 - ANSWER: One letter is randomly selected from the word MATH, and a second letter is randomly selected from the work JOKES. W...

Probability Questions & Answers Genetics experiments on the breeding of plants or animals are based on the laws of _____. segregation isolation genetics probability - ANSWER: probability If you have two pennies, the probability of both coming up heads when flipped is _____. 1/4 1/2 3/4 0/4...

Probability and stats Practice problems Questions & Answers 10 groups of 5 students spin the spinner shown. If each student spins the spinner 6 times, what is the expected number of times the spinner would land on A for all 10 groups of students? There is an equal chance the spinner lands on A, ...

Probability of Compound Events Questions & Answers A bag contains 1 red, 1 yellow, 1 blue, and 1 green marble. What is the probability of choosing a green marble, not replacing it, and then choosing a red marble? - ANSWER: B A package contains 4 red, 2 green, 8 purple, and 6 blue jelly beans. Wh...

Probability Questions & Answers 0, or 0% - ANSWER: an impossible chance of an event happening is the same as a _________________ chance 1/1, 1, or 100% - ANSWER: a certain chance of an event happening is the same as a ______________ chance 1/2 - ANSWER: If you roll a 12-sided dice, what is the ...

Probability Questions & Answers 0 - ANSWER: 1 red marble, 3 green, 4 blue. what is the probability of picking a yellow? 0/8 - ANSWER: what is the probability of landing on 9? 1/2 - ANSWER: 1 red marble, 3 green, 4 blue. what is the probability of not picking blue? 1/3 - ANSWER: what is the proba...

Concepts in Probability and Statistics – Questions & Answers A bag contains 1 blue, 2 green, 3 yellow, and 3 red marbles, as shown. Which best describes the complement of choosing a red marble? - ANSWER: choosing a blue, green, or yellow marble A bag contains 1 blue, 2 green, 3 yellow, and ...

Probability Questions & Answers 0 - ANSWER: If you spin the spinner once, what is the probability that you will get a number greater than 8? 0.25 - ANSWER: an unlikely chance of an event happening is the same as approximately a ________________ chance 1/10 - ANSWER: A spinner and a fair number ...

Probability Questions & Answers A deck of playing cards has 52 cards, of which 12 are face cards. If you shuffle the deck well and turn over the top 3 cards, one after the other, what's the probability that all 3 are face cards? - ANSWER: 0.010 Since you turn one after another, you are NOT repl...

Experimental Probability and Theoretical Probability Questions & Answers "What you're looking for" - ANSWER: Favorable Outcome 0 - ANSWER: 1 red marble, 3 green, 4 blue. what is the probability of picking a yellow? 1 - ANSWER: what is the probability of landing on an odd or even number? 1/10...

Probability Questions & Answers A given B - ANSWER: The probability of A given B is found using the ratio P(A and B)/P(B). Addition Rule - ANSWER: P(A or B) = P(A) + P(B) - P(A and B) Complement - ANSWER: The set of all elements of the universal set that are not in A. Conditional Probability - A...

Probability Questions & Answers 0 - ANSWER: There is 1 red marble, 3 green marbles and 4 blue marbles in a bag. What is the probability of picking a yellow? 0 - ANSWER: What is the probability of landing on 9? 0, or 0% - ANSWER: an impossible chance of an event happening is the same as a ______...

Test Four - Probability Concepts Questions & Answers 0 - ANSWER: One card is selected at random from an ordinary deck of 52 playing cards. Events A, B, and C are defined below. Compute the conditional probabilities directly; do not use the conditional probability rule. Note that the ace has the h...

Probability with Combinations and Permutations Questions & Answers A landscaper is selecting two trees to plant. He has five to choose from. Three of the five are deciduous and two are evergreen. What is the probability that he chooses trees of two different types? Express your answer as a perc...

Conditional Probability: Questions & Answers A box contains four red balls and eight black balls. Two balls are randomly chosen from the box, and are not replaced. Let event B be choosing a black ball first and event R be choosing a red ball second. What are the following probabilities? P(B)= ...

Probability-Chapter 6 Questions & Answers A population of birth weights has a mean of μ = 8.1, and a standard deviation of σ = 0.1. What is the probability of an individual weight being greater than 8.4? a. 99.87% b. 15.87% c. 2.28% d. 0.13% - ANSWER: 0.13% A population of insect weights is...

Probability Questions & Answers 0 or 0% - ANSWER: What is the experimental probability of spinning a 7? 1 or 100% - ANSWER: What is the theoretical probability of spinning a number less than 7? 1/10 (1/4 x 2/5) - ANSWER: One letter is randomly selected from the word MATH, and a second letter is ...

Probability of Inheritance quiz Questions & Answers A dihybrid cross is created from plants that are heterozygous for both round seeds and yellow seed color. What is the ratio of offspring that have round seeds and yellow seed color? - ANSWER: 9:16 A plant can produce either purple flowers or wh...

Probability with Combinations and Permutations Questions & Answers A bag contains 10 red marbles, 15 yellow marbles, 5 green marbles, and 20 blue marbles. Five marbles are drawn from the bag. What is the approximate probability that exactly two of the five are blue? - ANSWER: C A lock is opened...

Statistics and Probability Questions & Answer Addition - ANSWER: For mutually exclusive events we can use the ____ Principle of Counting. Addition Rule - ANSWER: For probability this rule states that (A ∪ B) = P(A) + P(B) - P(A ∩ B) Average - ANSWER: This is the sum the numbers in a set, div...

Probability Questions & Answers "Conditional Probability" states that ... - ANSWER: For whatever reason that we know event B is true or occurred, then given this condition, what is the probability that "A" happens. "With Replacement" means that all choices made are ... - ANSWER: "independe...

Probability Questions & Answers A baseball team has scheduled its opening game for April 1. If it rains on April 1, the game is postponed and will be played the next day that it does not rain. The team purchases insurance against rain. The policy will pay 1000 for each day, up to 2 days, that the...

Experimental Probability Assignment Questions & Answers A cereal manufacturer checks a set number of cereal boxes every day to better understand problems in the manufacturing process. The table at right describes possible packaging problems and the frequency of each problem. If the cereal manuf...

Probability (quiz) ~ amdm Questions & Answers A die is rolled 200 times with the following results. What is the experimental probability of rolling the given result? 3 a. 0.22 c. 0.44 b. 0.78 d. 0.23 - ANSWER: A. 0.22 A die is rolled 200 times with the following results. What is the experimen...

Probability Checkpoint 2 Questions & Answers A fair die is rolled 12 times. Consider the following three possible outcomes: (i) 6 5 4 3 2 1 6 5 4 3 2 1 (ii) 1 1 1 1 1 1 1 1 1 1 1 1 (iii) 3 6 2 1 5 4 2 5 1 6 4 3 Which of the following is true? - ANSWER: The die is fair. This means that all faces...

Probability Terminology and Notation Questions & Answers A business firm has 800 employees out of which 176 are married men, 272 are married women, 208 are single men, and 144 are single women. Let x=0, 1, 2 and 3 represent the events that a person is a married man, married woman, single man and...

Introduction to Probability Questions & Answers A 'Statistics for the Natural Sciences' course has 75 students: 22 Physics majors, 23 Chemistry majors, and 30 Biology majors. If a student is chosen at random, what is the probability that the student is a biology major? (Answers are presented in...

Intro to Probability Questions & Answers A bag contains eleven equally sized marbles, which are numbered. What is the probability that a marble chosen at random is shaded or is labeled with a multiple of 3? - ANSWER: 6/11 A bicycle manufacturer is studying the reliability of one of its models. Th...

Probability and Heredity Questions & Answers A chart that shows all the possible combinations of alleles that can result from a genetic cross. Probability what the object would be. What is this called? - ANSWER: Punnett Square A gene is made up of ______ alleles - ANSWER: 2 a number describing h...

Binomial Probability Questions & Answers A coin is flipped 8 times. Find the probability of the event: exactly 3 heads - ANSWER: c A coin is flipped 8 times. Find the probability of the event: exactly 5 heads - ANSWER: c A coin is flipped 8 times. Find the probability of the event: exactly 6 h...

Probability Questions & Answers Addition Principle of Counting - ANSWER: we use this principle of counting for mutually exclusive events. Add the number of events to get the total number additional rule - ANSWER: For probability this rule states that (A ∪ B) = P(A) + P(B) - P(A ∩ B) categor...

Probability Questions & Answers Average - ANSWER: The sum of a set of elements divided by the number of elements in the set; also called the Mean or Weighted Average. Bernoulli Trial - ANSWER: Another name for a trial in a binomial experiment. Binomial Distribution - ANSWER: "A statistical dist...

Statistics and Probability Questions & Answers As likely as not - ANSWER: 50% Bar Graph - ANSWER: a graphical representation to organize data that uses solid bars that do not touch each other to show the frequency (number of times) that each category occurs Biased Sample - ANSWER: is NOT represe...

Probability and Statistics Questions & Answers 68-95-99.7 rule - ANSWER: Alternative hypothesis - ANSWER: The claim that we are trying to find evidence for in a significance test Bayes Theorem - ANSWER: P[B given A] = P[A and B]/P[A] = P[A given B]P[B]/P[A] Bernoulli trial - ANSWER: when a rand...

Statistics and Probability Questions & Answers As likely as not - ANSWER: 50% Bar Graph - ANSWER: a graphical representation to organize data that uses solid bars that do not touch each other to show the frequency (number of times) that each category occurs Biased Sample - ANSWER: is NOT represe...