Calculate variance-of-3_-6_-9_-12

Calculate mean, median, mode, standard deviation, variance and more — step by step.

Data

Answer

45/4

To find the population variance of 4 values, follow the step-by-step solution below.

Step 1 — Find the mean

Add all values and divide by the count:

Mean = -30 ÷ 4 = -152

Step 2 — Find each squared deviation from the mean

For each value, subtract the mean and square the result:

(-3 − -152)² = 814

(-6 − -152)² = 94

(-9 − -152)² = 94

(-12 − -152)² = 814

Step 3 — Average the squared deviations

Divide the sum of squared deviations by the count:

Variance = 45 ÷ 4 = 454

Variance = 454

How to calculate variance-of-3_-6_-9_-12

To find the result of the given data set, apply the statistical formula and follow the steps shown above.

This is a Statistics — statistical calculation

Frequently asked questions

What is the answer to variance-of-3_-6_-9_-12?
The answer is 45/4.

What method is used?
Statistical functions like mean, median, mode, and standard deviation summarize a dataset into a single representative value.

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