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Based on the results of a survey, 45% of respondents said they like the idea of...

Based on the results of a survey, 45% of respondents said they like the idea of having their orders delivered by drones. Suppose 60 customers are sampled. Let x be the number of customers who like their orders delivered by drones.

a. explain whether the conditions are met for the variable x to have a binomial distribution

b. how many people would you ever expect to like the idea of drones delivering their orders? (Hint: expected value)

c. what is the probability that 30 or fewer of them like the idea of drones delivering their orders? (round to 4 decimals)

Math   Statistics-And-Probability   
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Z value is rounded to 2 decimals

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