Question

USING EXCEL

Elly's Hotdog Emporium is famous for its chilidogs. Elly's latest sales indicate that 30% of the customers order their chilidogs with hot peppers.

Suppose 15 customers are selected at random. What is the probability that exactly 10 customers will ask for hot peppers?

Answer 1

Here n = number of customers = 15

        p = Probability that customers order their chilidogs with hot peppers = 0.3

Here we have to find P(x = 10)

We can find this probability from excel using command:

=BINOM.DIST(10,15,0.3,FALSE)              

(Where FALSE for probability mass function because we are finding equal to type "=" probability)

= 0.003            (Round to 3 decimal)

The probability that exactly 10 customers will ask for hot peppers is 0.003