nect Elementary Statistics: A Step-By-Step Approach MATH Hosted by ALEKS Corp 4.

Question

nect Elementary Statistics: A Step-By-Step Approach MATH Hosted by ALEKS Corp 4.3 Homework Previous 1 2 4 5 6 7890 Next Question 3 of 17 (1 point) 4.3 Section Exercise The Gallup Poll reported that 52% ofAmericans used a seat belt the last time they got into a car. If 7 people are selected at random, find the probability that they all used a seat belt the last time they got into a car. Please round the final answer to 2 or 3 decimal places. P(7 people are used a seat belt the last time they got into a car)-

Explanation / Answer

Here p = 0.52
and n = 7

This is binomial distribution problem
P(X = 7) = 7C7*(0.52)^7*(1-0.52)^0
P(X = 7) = 0.01028

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