Words 0 Path: p QUESTION 13 Suppose it is known that 20% of college students wor

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Words 0 Path: p QUESTION 13 Suppose it is known that 20% of college students work full time. If we randomly select 12 college students, what is the probability that at least three of the 12 work full time? Round your answer to 4 decimal places. Don't forget to show your work! QUESTION 14 Three college students play a game every Thursday night. Only one student can win the game. Based on past games, the probability that the first student wins the game is 0.3 and the probability that the second student wins the game is also 0.3. What is the probability that the third student wins the game? 0.3 0.4 0.6 0.7 QUESTION 15 Let X be a random variable describing the numbers of ounces of soda purchased at the soda fountain at a 7/11 store. Assume that X has the following probability distribution. k Save and Suhnit to save and submit Click Save All Answers to save oll anseers Save Al Answers

Explanation / Answer

Solution:-

13) The probability that atleast three of the 12 work full time is 0.4417.

P(Full time) = 0.20

n = 12

x = 3

By applying binomial distribution

P(x,n) = nCx*px*(1-p)(n-x)

P(x > 3) = 0.4417

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