Question

Listed below are the top 10 annual salaries of tv personalities. Find the range , variance and standard deviations for the sample data.

Given that these are the top 10 salaries, do we know anything about the variance in salaries of TV personalities?
42 40 39 31 22 18 15 12 11.7 10.5

Answer 1

range is 31.5, variance is 161.3 and standard deviation is 12.7 for a sample of top 10 annual TV personalities.

Explanation:

• Average is mid-point is the mid-point of the data but can skew....
• On the Left or Right is there are higher or lower values.
• Range is difference between maximum and minimum value of data.
• Variance, measure of variability of data but squared or mean deviation.
• Standard deviation is the most important variability.
• It helps in finding out variability with 3 sigma deviations.
• Standard deviation is square root of variance and each sigma explains...
• The data lieing between or within the extreme values.