I think the information in the photo is fit with your question.
Step-by-step explanation:
Let X is the number of person who is older than 35 years has a hemoglobin level between 9 and 11
We know the total number of people above 35 is 162
=> 76+x+40=162
<=> x=46
The number of person who is older than 35 years has a hemoglobin level between 9 and 11 is 46.
A. The probability that a person who is older than 35 years has a hemoglobin level between 9 and 11 is:
P = [tex]\frac{46}{162}[/tex] ≈ 0.284
B. .Person who is older than 35 years has a hemoglobin level of 9 and above is :
P = [tex]\frac{86}{162}[/tex] ≈ 0.531
