Camila owns a small business selling used books. She knows that in the last week 40 customers paid cash, 16 customers used a debit card, and 39 customers used a credit card.
Based on these results, express the probability that the next customer will pay with a credit card as a decimal to the nearest hundredth.
To find the probability of the next customer paying with a credit card, we can use the formula:
Probability = Number of favorable outcomes / Total number of outcomes
In this case, the number of favorable outcomes is the number of customers who paid with a credit card in the last week, which is 39. The total number of outcomes is the sum of customers who paid with cash, debit card, and credit card, which is 40 + 16 + 39 = 95.
Therefore, the probability that the next customer will pay with a credit card is 39/95 ≈ 0.41.
So, the probability as a decimal to the nearest hundredth is approximately 0.41.