Advertisements
Advertisements
प्रश्न
State the following are not the probability distributions of a random variable. Give reasons for your answer.
| X | 0 | 1 | 2 | 3 | 4 |
| P(X) | 0.1 | 0.5 | 0.2 | -0.1 | 0.3 |
Advertisements
उत्तर
It is known that the sum of all the probabilities in a probability distribution is one.
It can be seen that for X = 3, P (X) = −0.1
It is known that probability of any observation is not negative. Therefore, the given table is not a probability distribution of random variables.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
