Question

In: Statistics and Probability

In the accompanying​ table, the random variable x represents the number of televisions in a household...

In the accompanying​ table, the random variable x represents the number of televisions in a household in a certain country. Determine whether or not the table is a probability distribution. If it is a probability​ distribution, find its mean and standard deviation.

x | P(x)

0 | 0.05

1 | 0.12

2 | 0.24

3 | 0.31

4 | 0.17

5 | 0.11

If the table is a probability​ distribution, what is its​ mean? Select the correct choice below and fill in any answer boxes within your choice.

A. Its mean is ____ . ​(Round to the nearest tenth as​ needed.)

B. The table is not a probability distribution.

If the table is a probability​ distribution, what is its standard​ deviation? Select the correct choice below and fill in any answer boxes within your choice.

A. Its standard deviation is ______.

B. The table is not a probability distribution.

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