Q5 of 77 Page 32

Find the mean of the following probability distribution:

The probability distribution of X is:





We Know that



Therefore





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If X denotes the number on the upper face of a cubical die when it is thrown, find the mean of X

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If the probability distribution of a random variable X is given by

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If the probability distribution of a random variable X is as given below:

Write the value of P (X ≤ 2).


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A random variable has the following probability distribution:

Write the value of P (X ≥3).