|
Question 857371: Question 1 (Multiple Choice Worth 1 points)
[06.02]
The table shows data from a survey about the amount of time high school students spent reading and the amount of time spent watching videos each week (without reading).
Reading Video
5 1
5 4
7 7
7 10
7 12
12 15
12 15
12 18
14 21
15 26
Which response best describes outliers in these data sets?
Neither data set has suspected outliers.
The range of data is too small to identify outliers.
Video has a suspected outlier in the 26 hour value.
Due to the narrow range of reading compared to video, the video values of 18, 21, and 26 are all possible outliers.
Question 2 (Multiple Choice Worth 1 points)
[06.02]
The box plots show male and female grades in a biology class.
two bar graphs shown. The top one is labeled Male. Q1 at 71, median at 76, Q3 at 84, maximum at 98. The bottom bar graph is labeled Female. Minimum at 65, Q1 at 75, median at 88, Q3 at 90, maximum at 98.
Which of the following best describes the information about the interquartile ranges?
The interquartile ranges are quite close in value.
The male interquartile range is not accurate because the first quartile is missing.
The interquartile range for females is skewed left due to the high median.
The interquartile range for males should be higher because its overall range is higher.
Question 3 (Multiple Choice Worth 1 points)
[06.02]
Male and female high school students reported how many hours they worked each week in summer jobs. The data is represented in the following box plots.
two bar graphs shown. The top one is labeled Males. Minimum at 1, Q1 at 3, median at 10.5, Q3 at 24, maximum at 21. The bottom bar graph is labeled Females. Minimum at 0, Q1 at 15, median at 18, Q3 at 21, no maximum shown
Identify any values of data that might affect the statistical measures of spread and center.
The females worked more than the males and the female Q3 equals the top of the range.
The spread and center are skewed due to the fourth quartile missing with the females.
There is a significant outlier at the low end for the females.
The males have a high outlier and the females have a low outlier.
Question 4 (Multiple Choice Worth 1 points)
[06.02]
The box plots show the average daily temperatures in January and December for a U.S. city.
two bar graphs shown. The top one is labeled January. Minimum at 0, Q1 at 10, median at 12, Q3 at 13, maximum at 16. The bottom bar graph is labeled December games. Minimum at 1, Q1 at 5, median at 18, Q3 at 25, maximum at 35
What can you tell about the means for these two months?
The mean for December is higher than January's mean.
It is almost certain that January's mean is higher.
There is no way of telling what the means are.
The narrow IQR for January causes its mean to be lower.
Question 5 (Multiple Choice Worth 1 points)
[06.02]
The table shows data for a class's mid-term and final exams.
Mid-Term Final
98 99
98 93
93 93
90 93
88 88
82 86
78 80
75 78
75 78
70 78
68 72
Which data set has the largest standard deviation?
Mid-term exams
Final exams
They have the same standard deviation.
There is not enough information.
Question 6 (Multiple Choice Worth 1 points)
[06.02]
The table shows data from a survey about the number of times families eat at restaurants during a week. The families are either from Rome, Italy or New York, New York.
High Low Q1 Q3 IQR Median Mean σ
Rome 21 1 1.5 7.5 6 4.5 6.5 6.6
New York 20 1 3.5 7.5 4 5 6.5 5.2
Which of the choices below best describes how to measure the center of this data?
Both centers are best described with the mean.
Both centers are best described with the median.
The Rome data center is best described by the mean. The New York data center is best described by the median.
The Rome data center is best described by the median. The New York data center is best described by the mean.
Question 7 (Multiple Choice Worth 1 points)
[06.02]
The table shows data from a survey about the number of times families travel by car or taxi during an average week. The families are either from a rural town (population under 5,000) or a large city (population over 1 million).
Rural Town City
0 2
1 5
2 6
8 7
9 9
15 14
20 15
25 20
35 25
36 25
40 30
Which of the choices below best describes how to measure the center of this data?
Both centers are best described with the mean.
Both centers are best described with the median.
The country data center is best described by the mean. The city data center is best described by the median.
The country data center is best described by the median. The city data center is best described by the mean.
Question 8 (Multiple Choice Worth 1 points)
[06.02]
The table shows data from a survey about the amount of time students spend doing homework each week. The students were either in college or in high school.
High Low Q1 Q3 IQR Median Mean σ
College 50 6 8.5 17 8.5 12 15.4 11.7
High School 28 3 4.5 15 10.5 11 10.5 5.8
Which of the choices below best describes how to measure the spread of this data?
Both spreads are best described with the IQR.
Both spreads are best described with the standard deviation.
The college spread is best described by the IQR. The high school spread is best described by the standard deviation.
The college spread is best described by the standard deviation. The high school spread is best described by the IQR.
Question 9 (Multiple Choice Worth 1 points)
[06.02]
The box plots show attendance at a local movie theater and high school basketball games.
two bar graphs shown. The top one is labeled Movies. Minimum at 60, Q1 at 65, median at 95, Q3 at 125, maximum at 150. The bottom bar graph is labeled Basketball games. Minimum at 90, Q1 at 95, median at 125, Q3 at 145, maximum at 150.
Which of the following best describes how to measure the spread of the data?
The IQR is a better measure of spread for movies than it is for basketball games.
The standard deviation is a better measure of spread for movies than it is for basketball games.
The IQR is the best measurement of spread for games and movies.
The standard deviation is the best measurement of spread for games and movies.
Question 10 (Multiple Choice Worth 1 points)
[06.02]
The box plots show student grades on the most recent exam compared to overall grades in the class.
two bar graphs shown. The top one is labeled Class. Minimum at 68, Q1 at 71, median at 84, Q3 at 89, maximum at 100. The bottom bar graph is labeled Exam. Minimum at 55, Q1 at 76, median at 85, Q3 at 94, maximum at 100.
Which of the following best describes the information about the medians?
The class and exam medians are almost the same.
The exam median is much higher than the class median.
The class and exam Q3 are the same, but the exam has the lowest median.
The low outlier on exams pulls the median lower.
Answer by Fombitz(32388)   (Show Source):
You can put this solution on YOUR website! Question 1 : Neither data set has suspected outliers
Question 2 : Where are the box plots?
Question 3 : Where are the box plots?
Question 4 : Where are the box plots?
Question 5 : Final exams, right hand column
|
|
|
| |
