## Question

###### 1) Given the following sample data: 18 21 32 41 Calculate the sample variance. Keep to 2 decimal places.2)Given the following sample data: 18 21 32 41 Determine the sample standard deviation. Keep to twodecimal places.3)The hourly wages of a sample of 130 system analysts are givenbelow.MeanMedianModeRangeVarianceStandard deviation6074732032418The coefficient of variation equals.a) Given the mean is 13, the median is 10 and the standarddeviation is 4. Determine the coefficient of skewness. K

1) Given the following sample data: 18 21 32 41 Calculate the sample variance. Keep to 2 decimal places. 2)Given the following sample data: 18 21 32 41 Determine the sample standard deviation. Keep to two decimal places. 3) The hourly wages of a sample of 130 system analysts are given below. Mean Median Mode Range Variance Standard deviation 60 74 73 20 324 18 The coefficient of variation equals. a) Given the mean is 13, the median is 10 and the standard deviation is 4. Determine the coefficient of skewness. Keep to 2 decimal places. Do not convert to percent.

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