Question

Fawzia owns a small business selling used books. She knows that in the last week 45 customers paid cash, 10 customers used a debit card, and 64 customers used a credit card.

Based on these results, express the probability that the next customer will pay with a debit card as a decimal to the nearest hundredth.

Answer 1

0.08

Explanation:

45 cash, 10 debit card, and 64 credit card.

= 45+10+64=119

There were a total of 119 customers. 10 paid with a debit card.

Probability the next customer will pay with a debit card:

10/119

=0.084033...

≈0.08

Answer 2

0.08

Explanation:

`(10)/(45+10+64)` The numerator is the number of times a customer used a debit card. The denominator is the total of all the ways that customers have paid.

`(10)/(19)` = 0.08403361344

This rounded to the nearest hundredths is

0.08