Question

peyton owns a small business selling used books. she knows that in the last week 19 customers paid cash, 25 customers used a debit card, and 24 customers used a credit card. based on these results, express the probability that the next customer will pay with a debit card or a credit card as a decimal to the nearest hundredth.

Explanation:

Step1: Calculate total number of customers

The total number of customers is the sum of those who used a debit - card, credit - card and paid cash. So, total customers = 25 (debit - card) + 24 (credit - card)+19 (cash)=68 customers.

Step2: Calculate the probability

The probability $P$ that the next customer will pay with a debit card is the number of customers who used a debit card divided by the total number of customers. So, $P=\frac{25}{68}\approx0.37$.

Answer:

0.37