Question

A random sample of 10 rubjects have woights wth a standard deviation of 11.3377 kg. What is the vaciance of their weights? 8 e sure to include the aqpropnate units with the result. The variance of the sampie dita is (Round to four decimal places asi neodi

Answer 1

To calculate the variance of the subjects' weights, square the standard deviation of 11.3377 kg, which results in a variance of 128.5418 kg^2, rounded to four decimal places.

Step-by-step explanation:

The student is asking to find the variance of the weights of a random sample of 10 subjects given that the standard deviation is 11.3377 kg. The variance is calculated by squaring the standard deviation. Therefore, the variance σ2 is (11.3377 kg)2.

Step-by-step calculation:

1. Identify the standard deviation (S): 11.3377 kg.
2. Square the standard deviation to find the variance (S2): (11.3377 kg)2 = 128.5418 kg2 (rounded to four decimal places).

The variance of the sample data is 128.5418 kg2 when rounded to four decimal places.