Quiz
Chapter 7
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Questions in this quiz (10)
1What is the advantage of a histogram over a stemplot or dotplot?
- AHistograms can be used for categorical data whereas stemplots and dotplots cannot be used for categorical data
- BThe actual data can still be observed in a histogram
- CHistograms work well for very large data sets
- DShape, center, and spread are only applicable for histograms
2What type of graph would be best for displaying the first semester GPA's of 2000 college freshman?
- APie chart
- BBar graph
- CHistogram
3In a telephone survey, drivers were asked, "Recalling the last ten traffic lights you drove through, how many were red when you entered the intersection?" What type of variable is "number of traffic lights that were red"?
- ATrue
- BFalse
4What type of variable is "whether a driver entered the intersection when the light was red at his/her last stop light"?
- ATrue
- BFalse
5As cars in a large fleet were brought in for an oil change on one particular day, the mileage since the last oil change was recorded as follows.
2831 4448 3421 3100 2600 2875
927 1145 1185 1345 1823
Make a stemplot of these data by hand. Round the mileages to the nearest hundreds place. In other words, use stems of 0, 1, 2, 3, 4, and 5 with, for example 4448 having a 4 on the 4 row, 927 having a 9 on the 0 row, and 1185 having a 2 on the 1 row. What is the best description of the shape of your stemplot?- AA single peaked, symmetric distribution.
- BA bimodal distribution.
- CA single peaked, right-skewed distribution.
- DA single peaked, left-skewed distribution.
6As cars in a large fleet were brought in for an oil change on one particular day, the mileage since the last oil change was recorded as follows.
2831 4448 3421 3100 2600 2875
927 1145 1185 1345 1823
What is the best measure of center for the stemplot in question 6?- ABetween 1300 and 1800
- BBetween 2500 and 2700
- CBetween 2900 and 3100
7Which type of graphical display is used for large sets of quantitative data?
- AStem and Leaf Plot
- BHistogram
- CDot Plot
8In an email survey, students were asked, "During the past week, how many nights did you go to sleep past midnight?" What type of variable is "number of nights going to sleep past midnight"?
- AQuantitative
- BCategorical
9Which graph is not used to display quantitative data?
- AHistogram
- BPie Chart
- CStem and Leaf Plot
- DDot Plot
10What is an advantage of using a stem and leaf plot, rather than a histogram?
- AStem plots are best for very large sets of data and histograms are not
- BStem plots only work for categorical sets of data
- CStem plots can show exact values, where histograms are more approximate
- DStem plots can show the shape of the data, but histograms cannot
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- Statistics Quiz on Chapter 7, created by sarah wood on 11/02/2019.
- Author
- sarah wood
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- English
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