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. |
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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