QUESTION 5 According to a nutritionist, 71% of college students are coffee drink

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QUESTION 5

According to a nutritionist, 71% of college students are coffee drinkers. If a college student is randomly selected, what is the probability that they do not drink coffee?

QUESTION 6

In New York City, 35% of residents commute to work by subway. If 2 New Yorkers are randomly selected, what is the probability that they both commutes to work on the subway?

QUESTION 7

Jillian has a workout playlist on her that has 6 songs by PitBull, 3 songs by Katy Perry, 3 songs by Beyonce and 5 songs by Pink. She uses the shuffle feature to randomly play the songs. Assuming the songs will each only play one time, what is the probability that the first three songs played are all songs by PitBull?

QUESTION 8

A manufacturer offers sweaters in a variety of colors and a variety of styles, but not all styles are available in all of the colors. The sample space for all of the available colors is provided below. Event A is defined as the colors available for the turtleneck style and it is also provided below

S = {black, white, blue, purple, red, cream, charcoal, brown}

A = {black, white, blue, red, charcoal, brown}

Compute P(A)

Write the elements that belong in the complement of A

QUESTION 9

A survey of students was conducted to determine what type of textbook they purchased most frequently. The results are summarized in the following table.  Given that a student purchases a new book, what is the probability that they are a freshman?

New Book Used Book e-book Freshman 33 10 16 Sophomore 15 20 15 Junior 13 26 27 Senior 13 20 16

Explanation / Answer

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5)

According to a nutritionist, 71% of college students are coffee drinkers. If a college student is randomly selected, what is the probability that they do not drink coffee?

Ans: Dont drink coffee = 1 - 0.71 = 0.29

6)

In New York City, 35% of residents commute to work by subway. If 2 New Yorkers are randomly selected, what is the probability that they both commutes to work on the subway?

Ans: Both use subway = 0.35 * 0.35 = 0.1125

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