Question

David's gasoline station offers 4 cents off per gallon if the customer pays in cash and does not use a credit card. Past evidence indicates that 28 percent of all customers pay in cash. During a one-hour period, 15 customers buy gasoline at this station. What is the probability that at least 10 pay in cash?

Name: davids gasoline station offers 4 cents off per gallon if the customer pays in cash and does not use a credit card past evidence indicates that 28 percent of all customers pay in cash during 25425
Uploaded: 2021-12-28T18:05:45-08:00
Duration: 1 min 1 s
Channel: Narayan Hari
Description: davids gasoline station offers 4 cents off per gallon if the customer pays in cash and does not use a credit card past evidence indicates that 28 percent of all customers pay in cash during 25425

          David's gasoline station offers 4 cents off per gallon if the customer pays in cash and does not use a credit card. Past evidence indicates that 28 percent of all customers pay in cash. During a one-hour period, 15 customers buy gasoline at this station. What is the probability that at least 10 pay in cash?

Added by Courtney G.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Narayan Hari

12/28/2021

Step 1

Each customer pays cash with probability p = 0.28, and there are n = 15 independent customers. Let X be the number paying cash: X ~ Binomial(n=15, p=0.28). Show more…

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David's gasoline station offers 4 cents off per gallon if the customer pays in cash and does not use a credit card. Past evidence indicates that 28 percent of all customers pay in cash. During a one-hour period, 15 customers buy gasoline at this station. What is the probability that at least 10 pay in cash?