Question

the graph shows the annual heart attack rate per 10,000 men as a function of blood cholesterol level. use the graph to approximate the annual heart attack rate per 10,000 men for those whose blood cholesterol level is 100 mg/dl. the heart attack rate for a blood cholesterol level of 100 mg/dl is \boxed{} per 10,000 men. (type a whole number. round to the nearest 5 as needed.)

Explanation:

Step1: Locate 100 mg/dl on x - axis

Find the x - value of 100 mg/dl on the graph's x - axis (mg/dl scale).

Step2: Find corresponding y - value

From x = 100 mg/dl, move up to the graph curve, then left to the y - axis (heart attack rate per 10,000 men). The y - value at x = 100 mg/dl appears to be 30 (by reading the graph, as the grid and curve show that at 100 mg/dl, the heart attack rate is around 30 per 10,000 men).

Answer:

30