Question

This year the CDC reported that 30% of adults received their flu shot. Of those adults who received their flu shot, 20% still got the flu. Of those who did not receive the flu shot, 65% got the flu.

Use the tree diagram to determine the probability that a person with the flu is a person who received a flu shot.
Enter your answer as a decimal to the ten thousandths place.
_____

Answer 1

A student is asked to calculate percentages for different quantities of haircuts, based on the total of 70 haircuts. 70 haircuts represent 100% of the total haircuts. Additionally, 7 haircuts constitute 10% of the total, and 63 haircuts are 90% of the total.

Step-by-step explanation:

The question requires us to calculate percentages of the number 70 to complete the given table. To find what percent one number is of another, we divide the part by the whole and multiply by 100%. In this case, 70 haircut is the whole, and we're looking to find the percentages for 70, 7, and 63 haircuts.

Calculating the percentage of 70 haircuts: Since 70 haircuts are the total, it represents 100% of the haircuts.

Calculating the percentage of 7 haircuts: We compute (7 ÷ 70) × 100% = 10%.

Calculating the percentage of 63 haircuts: We calculate (63 ÷ 70) × 100% = 90%.

Therefore, the completed table should show:

70 haircuts = 100% of 70 haircuts

7 haircuts = 10% of 70 haircuts

63 haircuts = 90% of 70 haircuts