1) Which of the following variables is best suited for organization and descript
ID: 3071529 • Letter: 1
Question
1) Which of the following variables is best suited for organization and description using a frequency distribution?
The monthly totals for the number of immigrants to the U.S. for the period 1958-2013.
Number of votes for Barack Obama in the 2012 presidential election by U.S. county.
Whether or not a person received a telemarketing call during the month of September, 2013.
The proportion of households living in poverty for a sample of 198 U.S. neighborhoods.
2.
The sum of all proportions in a frequency distribution should sum to
0.
1.
100.
N.
3.What is the formula for a proportion?
p = f / N
p = n / f
p = (f / n) * 100
p = (f / 100) * n
4. Frequency distributions for __________ variables are often difficult to read.
a.nominal
b.ordinal
c. interval-ratio
d. dichotomous
5.About 13 percent of survey respondents in a sample reported that they do not attend religious services regularly. About what proportion of respondents did not attend religious services regularly?
a. 13
b. .13
c. 87
d. .87
a.The monthly totals for the number of immigrants to the U.S. for the period 1958-2013.
b.Number of votes for Barack Obama in the 2012 presidential election by U.S. county.
c.Whether or not a person received a telemarketing call during the month of September, 2013.
d.The proportion of households living in poverty for a sample of 198 U.S. neighborhoods.
Explanation / Answer
Solution: 1) Which of the following variables is best suited for organization and description using a frequency distribution?
Answer: a) The monthly totals for the number of immigrants to the U.S. for the period 1958-2013.
2) The sum of all proportions in a frequency distribution should sum to
Answer: b. 1
3.What is the formula for a proportion?
Answer: a. p = f / N
4. Frequency distributions for __________ variables are often difficult to read.
Answer: c. interval-ratio
5.About 13 percent of survey respondents in a sample reported that they do not attend religious services regularly. About what proportion of respondents did not attend religious services regularly?
Answer: b. .13
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