Question

Asked Oct 18, 2019

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I don't understand how to use the given information to answer the questions about the mean and standard deviation. Can you explain?

Step 1

Given probability distribution is:

Activities | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |

Probability | 0.059 | 0.123 | 0.164 | 0.177 | 0.210 | 0.129 | 0.084 | 0.054 |

Explanation:

Let x is random variable.

The mean is calculated as follows:

Step 2

Hence, the mean is 3.3.

The standard devia...

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