Suppose that 70% of the customers of a fast food chain order french fries how many of the next twenty customers who place an order expected to order french fries?

14 of the next twenty customers who place an order expected to order french fries

Step-by-step explanation:

For each customers, there are only two possible outcomes. Either they order french fries, or they do not order french fries. The probability of a customer ordering french fries is independent from other customers. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

70% of the customers of a fast food chain order french fries

This means that

How many of the next twenty customers who place an order expected to order french fries?

This is E(X) when n = 20. So

14 of the next twenty customers who place an order expected to order french fries

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step-by-step explanation:

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step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3