Statistiques Exemples

$μ = 11$ , $σ = 2.8$ , $x = 19$

Step 1

The z-score converts a non-standard distribution to a standard distribution in order to find the probability of an event.

$\frac{x - μ}{σ}$

Step 2

Find the z-score.

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Step 2.1

Fill in the known values.

$\frac{19 - (11)}{2.8}$

Step 2.2

Simplify the expression.

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Step 2.2.1

Simplify the numerator.

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Step 2.2.1.1

Multiply $- 1$ by $11$ .

$\frac{19 - 11}{2.8}$

Step 2.2.1.2

Subtract $11$ from $19$ .

$\frac{8}{2.8}$

Step 2.2.2

Divide $8$ by $2.8$ .

$2.\overline{857142}$

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