# Question: Consider the following frequency distribution Class Frequency 50 up

Consider the following frequency distribution.

Class ....... Frequency

50 up to 60 .... 10

60 up to 70 .... 15

70 up to 80 ..... 8

80 up to 100 .... 2

a. Calculate the sample mean.

b. Calculate the sample variance and the sample standard deviation.

Class ....... Frequency

50 up to 60 .... 10

60 up to 70 .... 15

70 up to 80 ..... 8

80 up to 100 .... 2

a. Calculate the sample mean.

b. Calculate the sample variance and the sample standard deviation.

## Answer to relevant Questions

The following relative frequency distribution was constructed from a population of 200. Calculate the population mean, the population variance, and the population standard deviation.Class .... Relative Frequency220 up to 210 ...The Boston Security Analysts Society, Inc. (BSAS) is a non-profit association that serves as a forum for the exchange of ideas for the investment community. Suppose the ages of its members are based on the following ...A social scientist wants to analyze the relationship between educational attainment and salary. He collects the following sample of data where Education refers to years of higher education and Salary is the person’s annual ...The following table shows the annual returns (in percent) for two of Putnam’s mutual funds: the Voyager Growth Fund and the George Putnam Fund of Boston.a. Calculate and interpret the covariance.b. Calculate the ...Consider the following box plot.a. Does the above box plot indicate possible outliers in the data?b. Comment on the the skewness of the underlyingdistribution.Post your question