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MATH221 Week 2 Exam Questions with Verified Solutions Rated A+ Latest Update 2025

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MATH221 Week 2 Exam Questions with Verified Solutions Rated A+ Latest Update 2025 (CO 2) A random number generator is used to select a number from 1 to 100. What is the probability of selecting an even number? - Answers 0.50 (CO 2) You flip a coin 3 times. The sample space is {HHH, HHT, HTH, THH,...

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  • January 9, 2025
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MATH221 Week 2 Exam Questions with Verified Solutions Rated A+ Latest Update 2025

(CO 2) A random number generator is used to select a number from 1 to 100. What is the probability of
selecting an even number? - Answers 0.50

(CO 2) You flip a coin 3 times. The sample space is {HHH, HHT, HTH, THH, HTT, THT, TTH, TTT}. Which of
the following is a simple event? - Answers You get exactly 3 tails

(CO 2) Consider the table below



Response (number of cats owned)-------Frequency

None---------------------------------------659

One----------------------------------------329

Two-----------------------------------------52

Three---------------------------------------13

Four or more-------------------------------8



What is the probability that the next person asked has only one cat? - Answers 31%

(CO 2) Consider the table below



Age Group-------------------------------Frequency

18-29---------------------------------------9831

30-39--------------------------------------7845

40-49--------------------------------------6869

50-59--------------------------------------6323

60-69--------------------------------------5410

70 and over-------------------------------5279



What is the probability that the next person chosen will be in the 18-29 or 30-39 age groups? - Answers
42.5%

, (CO 2) When children roll a die for a game, their probability of rolling a 5 is 17%. This is an example of
which type of probability? - Answers Classical probability

(CO 2) Consider the table below.



Age Group-------------------------------Frequency

18-29----------------------------------------9831

30-39---------------------------------------7845

40-49---------------------------------------6869

50-59---------------------------------------6323

60-69---------------------------------------5410

70 and over---------------------------------5279



What is the complement of P(30-49), or P(30-49')? - Answers 64.6%

(CO 2) You are selling your product at a three-day event. Each day, there is a 60% chance that you will
make money. What is the probability that you will make money on the first two days and lose money on
the third day? - Answers 0.144

(CO 2) Consider the table below.



-------------------Profit-----------Loss-----------Total

Urban location---50---------------38------------88

Rural location----61----------------94------------155

Total--------------111---------------132------------243



Find the probability that a randomly selected location is in a rural location, given that it is profitable. -
Answers 55.0%

(CO 2) Consider the table below.

Production location------Correct-----Defective-----Total

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