Question: In Example 5.4 three friends went to a Hungry Jacks franchise. Instead, suppose that they go to a McDonalds franchise, which last month filled 90%

In Example 5.4 three friends went to a Hungry Jack’s franchise.

Instead, suppose that they go to a McDonald’s franchise, which last month filled 90% of orders correctly.

a. What is the probability that:

i. all three orders will be filled correctly?

ii. none of the three will be filled correctly?

iii. at least two of the three will be filled correctly?

b. What is the mean and standard deviation of the number of orders filled correctly?

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