Question
Asked Apr 3, 2019

The mean clotting time of blood is 7.45 seconds with a standard deviation of 3.6 seconds. What is the probability that an individual's clotting time will be less than 2 seconds or greater than 13 seconds? Assume a normal distribution. 

The probability is?

 

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Expert Answer

Step 1

The normal distribution:

A continuous random variable X is said to follow normal distribution if the probability density function of X is,

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Step 2

Computing the probability that an individual’s clotting time will be less than 2 seconds or greater than 13 seconds is given below:

Here, the random variable X , the clotting time of blood is normally distributed with mean μ = 7.45 seconds, standard deviation, σ = 3.6 seconds. The probability that an individual’s clotting time will be less than 2 seconds or greater than 13 seconds can be obtained as follows:

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Step 3

Thus, the probability that an individual’s clotting time will ...

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