Question
Asked Jan 21, 2020
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In Exercises 21–24, assume that when adults with smartphones are randomly selected, 54% use them in meetings or classes (based on data from an LG Smartphone survey).

If 12 adult smartphone users are randomly selected, find the probability that fewer than 3 of them use their smartphones in meetings or classes.

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Expert Answer

Step 1

Given:

Probability of using smartphone in meetings or classes = 0.54

Number of selecting adult smartphone = 12

We have to find probability of selecting fewer than 3 of them use their smartphones in meetings or classes.

Step 2

We can use binomial probability to...

Statistics homework question answer, step 2, image 1
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