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Question
Two coins are tossed simultaneously. Getting a head is termed a success. Find the probability distribution of the number of successes
Solution
Let X is the random variable which counts the Number of Heads when the coins are tossed the outcomes are stated below
| Out Comes | (HH) | (HT) | (TH) | (TT) |
| Values of x | 2 | 1 | 1 | 0 |
These values are summarized in the following probability table
| Value of X | 0 | 1 | 2 |
| P(xi) | `1/4` | `2/4` | `1/4` |
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