Posted by
**becky** on
.

Suppose that 20% of the population uses Brand X laundry soap. If 9 customers at a supermarket are surveyed, what is the probability that 3 of them use Brand X?

Monday

March 27, 2017
Posted by
**becky** on
.

Suppose that 20% of the population uses Brand X laundry soap. If 9 customers at a supermarket are surveyed, what is the probability that 3 of them use Brand X?

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