For any distribution, there are an equal number of values above and below the mean. Do you agree?

Coefficient of variation CV = SD /mean *100

= 10/40*100 = 25%

Range by use of Thumb Range Rule = 4*SD =4*10=40

Can you explain these numbers? What do they mean?

According to the Empirical rule, about 95% of the observations lie within plus and minus 2.00 standard deviations – do you agree? If yes, can you find this range of values using the given metrics?

Correlation is the statistical relationship between two variables and **can be expressed differently,** such as in graphs. What do you mean by this statement? How will you interpret the correlation coefficient -0.854? Is it a strong correlation?

Please include references. Also make sure your responses are detailed and substantive.