Fifteen accounting had an average grade of 90 on an accounting exam. Seven marketing majors had an average of 85, while 10 marketing majors averaged 93 0n the same exam. What is the weighted maen for the 32 students taking the exam?

What is the relationship between the variance and the standard deviation?

Variance is the sq root of the standard deviation

Variance is the sq of standard deviation

Variance is twice the standard deviation

What is the range for a sample of March electric bills amounts for all electric homes of smaller sizes to the nearest dollar. 212, 191, 176, 129, 106, 92, 108, 109, 103, 121, 175, and 194

A population consist of all weights of defensive tackles of sociable university football team. They are Johnson-204 pounds, Patrick, 215, Junior 207, Kendron 212, Nicko 214, and Cohcran 208. What is the the population standard deviation in pounds? About:

A row of stem and leaf charts appears as follows 5 01379, assume that the data is rounded to the nearest unit.

The frequency of the class is seven

The minimum value is 0

The maximum value is 59

The class interval is 5

What is the mean for a set of March electric bills amounts for all electric for smaller sizes. To the nearest dollar. 212, 191, 176, 129, 106, 92, 108, 109, 103, 121, 175, and 194

103

130

143

112

A large oil company is studying the number of gallons od gasoline purchased per customer at self service pumps. The mean # XXXXX gallons is 15.0 with a standard deviation of 3.0 gallons. The median is 15.75. What is the person's coeffiecient of skewness?

I have 29 minutes left, and neeed topay for your help. These are the last 3 questions.

What is the value of the Pearson coefficient od skewness for a distribution with a mean of 24, median of 19, and standard deviation of 6.

+2.5

-2.5

+0.83

-0.83

The US department of education reported that for the past six years 23, 19, 15, 30, 27, and 25 women received doctorate degrees in computer and information sciences. What is the mean arithmetic annual of women receiving this degree.

15.1

23.2

37.9

22.9

None of the above

A study of the net sales of a sample of the small corporations revealed that the mean net sales is $21 million, median $24 million, model sales $26 million, and the standard deviation of the distribution is $1 million. What is the Pearsons coefficient of skewness?

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