# STT206 Tma Solutions

STT206

Compute the average for the observations 7, 5, 8, 10, 11, 6, 3, 10, 9, 13

8

Give that the variance of a set of scores is 100 and the coefficient of variation is 20%, determine \nthe mean for the scores

50

Determine the variance of the scores 2, 12, 18, 5, 8, 9, 13

28.285

Find the range for the observations 5.6, 7.1, 8.3, 3.7, 6.8, 4.1, 8.4, 2.9, 2.7, 4.4, 8.2, 2.8

5.7

Calculate the coefficient of variation for the observations 2, 12, 18, 5, 8, 9, 13

0.5556

Determine the variance of the scores 2, 12, 18, 5, 8, 9, 13

28.285

A certain set of data about the weight of female teachers in the age group 25 â€“ 40 gives a mean weight of \n51 kg, a standard deviation of 7.3 kg, and a median weight of 49.6 kg. Compute the coefficient of skewness

0.5753

Give that the variance of a set of scores is 100 and the coefficient of variation is 20%, determine \nthe mean for the scores

50

Find the range for the observations 5.6, 7.1, 8.3, 3.7, 6.8, 4.1, 8.4, 2.9, 2.7, 4.4, 8.2, 2.8

5.7

Given that the mean and variance of a set of observations are 12.9 and 28.8528, determine \nthe coefficient of variation

0.4164

The mean, mode and standard deviatiation of a dataset were computed as 240, 130 and 85 respectively.\nCalculate the skewness for the dataset.

1.29

Compute the average for the observations 7, 5, 8, 10, 11, 6, 3, 10, 9, 13

8

Calculate the mean absolute deviation for the observations 7, 5, 8, 10, 11, 6, 3, 10, 9, 13

2.4

When a strong inverse relationship exists between two variables, the correlation value tends to

-1

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