Question

Q21) The variance of 3,4,6,5,5,3,8,1,7,5 is *

Answer 1

Answer:

The variance of 3,4,6,5,5,3,8,1,7,5 is  $s^{2}$ = 4.2333333

Step-by-step explanation:

From the given question,

we have 3,4,6,5,5,3,8,1,7,5.

Standard Deviation s = 2.0575066

Count n = 10

Mean x = 4.7

Variance is a measure of dispersion of data points from the mean. Low variance indicates that data points are generally similar and do not vary widely from the mean. High variance indicates that data values have greater variability and are more widely dispersed from the mean.

The variance calculator finds variance, standard deviation, sample size n, mean and sum of squares. You can also see the work peformed for the calculation.

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This standard deviation calculator uses your data set and shows the work required for the calculations.

Sum of Squares $s^{2}$ =38.1

$s^{2}$ = $\frac{SS}{n - 1}$

$s^{2} = \frac{38.1}{10-1}$

$s^{2} = \frac{38.1}{9}$

$s^{2} = 4.23333333$

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