Solution Found!
Suppose that the percentage of American drivers who are multitaskers (e.g., talk on cell
Chapter 2, Problem 2.4-9(choose chapter or problem)
Suppose that the percentage of American drivers who are multitaskers (e.g., talk on cell phones, eat a snack, or text message at the same time they are driving) is approximately 80%. In a random sample of n = 20 drivers, let X equal the number of multitaskers. (a) How is X distributed? (b) Give the values of the mean, variance, and standard deviation of X. (c) Find the following probabilities: (i) P(X = 15), (ii) P(X > 15), and (iii) P(X 15).
Questions & Answers
QUESTION:
Suppose that the percentage of American drivers who are multitaskers (e.g., talk on cell phones, eat a snack, or text message at the same time they are driving) is approximately 80%. In a random sample of n = 20 drivers, let X equal the number of multitaskers. (a) How is X distributed? (b) Give the values of the mean, variance, and standard deviation of X. (c) Find the following probabilities: (i) P(X = 15), (ii) P(X > 15), and (iii) P(X 15).
ANSWER:Step 1 of 4
Given data
The number of random sample of drivers taken:
The percentage of rivers multitasking:
