# Question: Find the mean variance and standard deviation of the number

Find the mean, variance, and standard deviation of the number of cars sold per day, using the probability distribution.

X P(x)

0 ..... 0.1

1 ..... 0.1

2 ..... 0.2

3 ..... 0.2

4 ..... 0.3

5 ..... 0.1

X P(x)

0 ..... 0.1

1 ..... 0.1

2 ..... 0.2

3 ..... 0.2

4 ..... 0.3

5 ..... 0.1

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