What is the probability that a person who is older than 35 years has a hemoglobin level between 9 and 11? Select one of the options below as your answer:

A.
0.257

B.
0.284

C.
0.312

D.
0.356

E.
0.548

Answers

Answer 1

Answer:

1. The probability that a person who is older than 35 years has a hemoglobin level between 9 and 11 is 0.284.

2. The probability that a person who is older than 35 years has a hemoglobin level of 9 and above is 0.531.

What is probability?

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates impossibility of the event and 1 indicates certainty.

Given

Let the number of person who is older than 35 years has a hemoglobin level between 9 and 11 be x.

From the given table it is clear that the total number of person who is older than 35 years is 162.

76+x+40 = 162

116+x = 162

x = 46

The number of person who is older than 35 years has a hemoglobin level between 9 and 11 is 46.

1.The probability that a person who is older than 35 years has a hemoglobin level between 9 and 11 is

P = 46/162 = 0.62

The probability that a person who is older than 35 years has a hemoglobin level between 9 and 11 is 0.284.

Person who is older than 35 years has a hemoglobin level of 9 and above is 40+46 = 86

The probability that a person who is older than 35 years has a hemoglobin level of 9 and above is

P = 82/162 = 0.531

The probability that a person who is older than 35 years has a hemoglobin level of 9 and above is 0.531.

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