Math 302 quiz 4 - Study guides, Class notes & Summaries

MATH 302 Final Exam QUESTIONS & ANSWERS 2022 UPDATE - American University MATH 302 Final Exam 2022 - American University QUIZ 1 Question 1 of 20 1.0/ 1.0 Points Which of the following statements are false regarding a boxplot? A. The height of the box has no significance. B. Boxplots can be used to either describe a single variable in a data set or to compare two (or more)variables C. The length of the box equals the range of the data. D. The right and left of the box are the...

MATH 302 WEEK 3 QUIZ If random variable X has a binomial distribution with n =10 and P(success) =p =0.2, find the probability that X is less than 6. (That is, find P(X<6) Answer: (round to 4 decimal places) Answer Key:0.9936|.9936 P(x < 6) = P(x is less than or equal to 5), in Excel =BINOM.DIST(5,10,0.2,TRUE) Approximately 8% of all people have blue eyes. Out of a random sample of 20 people, what is the probability that at most 2 of them have blue eyes? Round answer to 4 decimal pl...

MATH 302 Final Exam QUESTIONS & ANSWERS 2022 UPDATE - American UniversityMATH 302 Final Exam 2022 - American University QUIZ 1 Question 1 of 20 1.0/ 1.0 Points Which of the following statements are false regarding a boxplot? A. The height of the box has no significance. B. Boxplots can be used to either describe a single variable in a data set or to compare two (or more)variables C. The length of the box equals the range of the data. D. The right and left of the box are the t...

MATH 302 Final Exam 2021 - American University QUIZ 1 Question 1 of 20 1.0/ 1.0 Points Which of the following statements are false regarding a boxplot? A. The height of the box has no significance. B. Boxplots can be used to either describe a single variable in a data set or to compare two (or more) variables C. The length of the box equals the range of the data. D. The right and left of the box are the third and first quartiles Answer Key: C Question 2 of 20 1.0/ 1.0 Point...

MATH 302 Quiz 4 Question And Answers – Set 4

MATH 302 Quiz 4 Question And Answers – Set 3

MATH 302 Quiz 4 Week 4 Knowledge Check – Question and Answers Part 1 of 6 – Calculations of Probabilities 1.A dishwasher has a mean life of 11.5 years with an estimated standard deviation of 1.5 years (“Appliance life 0.0/ 1.0 Points expectancy,” 2013). Assume the life of a dishwasher is normally distributed. Find the number of years that the bottom 10% of dishwasher would last. Round answer to 2 decimal places. 2. Find the area under the standard normal distribution to the left o...

MATH 302 Quiz 4 Week 4 Knowledge Check – Practice Test PART 1 OF 6 – CALCULATIONS OF PROBABILITIES 1. Find P(Z > -1.24). Round answer to 4 decimal places. Answer: ? 2. Find the area under the standard normal distribution to the left of z = -1.05. Round answer to 4 decimal places. 3. Find P(1.31 < Z < 2.15). Round answer to 4 decimal places. Answer: ? PART 2 OF 6 – CONTINUOUS RANDOM VARIABLES AND PROBABILITY FUNCTIONS 4. Find the probability that falls in the shaded area....

MATH 302 QUIZ 1 – QUESTION AND ANSWERS – SET 4 Part 1 of 3 - 7.0/ 12.0 Points Question 1 of 20 1.0/ 1.0 Points What type of sampling is being employed if the population is divided into economic classes and a sample is chosen from each economic class to be surveyed? A. random sampling B. cluster sampling C. stratified sampling D. systematic sampling Answer Key: C Question 2 of 20 0.0/ 1.0 Points Which of the following statistics is not a mea...

MATH 302 QUIZ 4 QUESTION AND ANSWERS – SET 4 Return to Assessment List Part 1 of 3 - 11.0/ 11.0 Points Question 1 of 20 1.0 / 1.0 Points A manufacturer of flashlight batteries took a sample of 13 batteries from a day�s production and used them continuously until they failed to work. The life lengths of the batteries, in hours, until they failed were: 342, 426, 317, 545, 264, 451, 1049, 631, 512, 266, 492, 562, and 298. At the .05 level of significance, is there evidence to su...