Question

QUESTION 16

Exhibit 2-4
A survey of 400 college seniors resulted in the following crosstabulation regarding their undergraduate major and whether or not they plan to go to graduate school.

		Undergraduate Major
	Graduate School	Business	Engineering	Others	Total
	Yes	35	42	63	140
	No	91	104	65	260
	Total	126	146	128	400

Refer to Exhibit 2-4. Of those students who are majoring in business, what percentage plans to go to graduate school?

		27.78
		8.75
		70
		72.22

2 points   

QUESTION 17

Exhibit 2-4
A survey of 400 college seniors resulted in the following crosstabulation regarding their undergraduate major and whether or not they plan to go to graduate school.

		Undergraduate Major
	Graduate School	Business	Engineering	Others	Total
	Yes	35	42	63	140
	No	91	104	65	260
	Total	126	146	128	400

Refer to Exhibit 2-4. Among the students who plan to go to graduate school, what percentage indicated "Other" majors?

		15.75
		45
		54
		35

2 points   

QUESTION 18

If several frequency distributions are constructed from the same data set, the distribution with the widest class width will have the

		fewest classes
		most classes
		same number of classes as the other distributions since all are constructed from the same data
		None of the other answers are correct.

2 points   

QUESTION 19

In constructing a frequency distribution, as the number of classes are decreased, the class width

		decreases
		remains unchanged
		increases
		can increase or decrease depending on the data values

2 points   

QUESTION 20

The sum of the frequencies in any frequency distribution always equals

		the number of observations
		1.00
		100
		the number of variables

Answer 1

Of those students who are majoring in business, what percentage plans to go to graduate school?

Required probability = 35/126 = 0.2778

Hence 27.78%

Question 17.

Required probability = 63/140 = 0.4500

Hence 45%

Question 18.
If several frequency distributions are constructed from the same data set, the distribution with the widest class width will have the fewest classes

Question 19.
In constructing a frequency distribution, as the number of classes are decreased, the class width increases

Question 20.
The sum of the frequencies in any frequency distribution always equals the number of observations