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Determine whether the value given below is from a discrete or continuous data set.
In an election poll, Landon received 16,838,917 votes.
Choose the correct answer below.
A. The data set is neither continuous nor discrete.
B. A discrete data set because there are a finite number of possible values.
C. A continuous data set because there are infinitely many possible values and those
values
cannot
be
counted.
D. A continuous data set because there are infinitely many possible values and those values can be counted.
Question Help
Identify the level of measurement of the data, and explain what is wrong with the given calculation.
In 1.1. a survey, the political parties of respondents are identified as 0 for a Democrat, 1 for a Republican, 2 for a Libertarian, and 3 for anything else. The average (mean) is calculated for 596 respondents and the result is
The data are at the
level of measurement.
What is wrong with the given calculation?
A. The true average (mean) is 1.3.
B. Such data are not counts or measures of anything, so it makes no sense to compute their average (mean).
C. Such data are not counts or measures of anything, so the average (mean) needs to be computed in a different way.
D. There is nothing wrong with the given calculation.
Which of the following does not apply to the ratio level of measurement?
O A. It cannot be arranged in order.
B. There is a natural zero starting point.
C. Differences between data values can be found and are meaningful.
0 D. It can be arranged in order.
Construct the cumulative frequency distribution for the given data.
Age (years) of Best Actress when award was won
Cumulative Frequency
Age (years) of Best Actress when award was won
Frequency
Less than 30
20-29
26
Less than 40
30-39
37
13
Less than 50
40-49
50-59
3
Less than 60
60-69
4
Less than 70
2
70-79
2
Less than 80
80-89
Less than 90
Use the given categorical data to construct the relative frequency distribution.
Natural births randomly selected from four hospitals in a highly populated region occurred on the days of the week (in the order of Monday through Sunday)with the frequencies 52,66,70,58,58,43,53 Does
it
appear that such births occur on the days of the week with equal frequency?
Construct the relative frequency distribution.
Day
Relative Frequency
Monday
%
Tuesday
%
Wednesday
%
Thursday
%
Friday
%
Saturday
%
Sunday
%
(Type integers or decimals. Round to two decimal places as needed.)
Let the frequencies be substantially different if any frequency is at least twice any other frequency. Does it appear that these births occur on the days of the week with equal frequency?
A. Yes, it appears that births occur on the days of the week with frequencies that are about the same.
B. No, it appears that births occur on the days of the week with frequencies that are substantially the same. different.
C. Yes, it appears that births occur on the days of the week with frequencies that are exactly
D. It is impossible to determine with the given information.
?
The boxplot shown below results from the heights (cm) of males listed in a data set. What do the numbers in that boxplot tell us?
Q
151
175.9
195
Q
168.1
179.5
3
The minimum height is
cm, the first quartile Q1 is
cm, the second quartile Q2 (or the median) is
cm, the third quartile Q3 is
cm, and the maximum height is
cm.
(Type integers or decimals. Do not round.)
J
Consider a value to be significantly low if its Z score less than or equal to - 2 or consider a value to be significantly high if its Z score is greater than or equal to 2.
A test is used to assess readiness for college. In a recent year, the mean test score was 20.9 and the standard deviation was 4.7. Identify the test scores that are significantly low or significantly
What test scores are significantly low? Select the correct answer below and fill in the answer box(es) to complete your choice.
A.
Test scores that are greater than
(Round to one decimal place as needed.)
B. Test scores that are less than
(Round to one decimal place as needed.)
C. Test scores that are between
and
(Round to one decimal place as needed. Use ascending order.)
What test scores are significantly high? Select the correct answer below and fill in the answer box(es) to complete your choice.
A. Test scores that are greater than
(Round to one decimal place as needed.)
B. Test scores that are less than
(Round to one decimal place as "needed.)
C. Test scores that are between
and
(Round to one decimal place as needed. Use ascending order.)
Listed below are the systolic blood pressures (in mm Hg) for a sample of men aged 20-29 years and for a sample of men aged 60-69 years. Find the coefficient of variation for each of the two sets of data, then
compare the variation. Round results to one decimal place.
Men aged 20-29: 117 122 129 118 131 123
Men aged 60-69: 130 153 141 125
164
139
A.
Men aged 20-29: 4.6%
Men aged 60-69: 10.2%
There is substantially more variation in blood pressures of the men aged 60-69.
B. Men aged 20-29: 4.4%
Men aged 60-69: 8.3%
There is substantially more variation in blood pressures of the men aged 60-69.
C. Men aged 20-29: 7.6%
Men aged 60-69: 4.7%
There is more variation in blood pressures of the men aged 20-29.
D. Men aged 20-29: 4.8%
Men aged 60-69: 10.6%
There is substantially more variation in blood pressures of the men aged 60-69.
Scores on the SAT test have a mean of 1518 and a standard deviation of 325. Scores on the ACT test have a mean of 21.1 and a standard deviation of 4.8. Which of the following choices is not true?
A. An ACT score of 17.0 has a z-score of - 0.85.
B. The SAT score of 1490 is relatively better than the ACT score of 17.0.
C. The ACT score of 17.0 is relatively better than the SAT score of 1490.
D. An SAT score of 1490 has a z-score of - 0.09.

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