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the average height is 100 , with a variance of 1.21. The probability that you will...

the average height is 100 , with a variance of 1.21. The probability that you will randomly encounter with a height of 100 is closest to:

0.0000

0.5000

0.5113

1.0000

None of the choices is correct.
math   Statistics-And-Probability   
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Answer #1

Solution:

Random variable X : Height

Height can take any value within a certain range.

So , it is a continuous random variable.

In this case , the probability at a particular value is supposed to be 0.

We can find only cumulative probabilities.

So ,

P(X = 100) = 0.00000

Answer : 0.0000

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