Statistics Examples

$n = 80$ , $p = 0.25$

Step 1

The mean of a binomial distribution is the number of trials multiplied by the probability.

$μ = n \cdot p$

Step 2

Fill in the known values.

$μ = 80 \cdot 0.25$

Step 3

Multiply $80$ by $0.25$ .

$μ = 20$

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$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$