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WorksheetsData Analysis Review
Total questions: 56
Worksheet time: 9hrs 20mins
Use these test grades to answer the following question.
What is the median test grade?
(a)
Use these test grades to answer the following question.
What is the mode of the test grades?
(a)
Use these test grades to answer the following question.
What is the range of the test grades?
(a)
Use these test grades to answer the following question.
Which grade is the outlier?
(a)
Would the shape of the data be:
Uniform
Symmetrical
Skewed left
Skewed right
An absent student took the test and made a 50. What affect, if any, will this have on the mean test grade?
Increase the mean
Decrease the mean
no affect
This is not the correct answer. Don't pick this answer.
The box plot shows the data distribution for a recent math quiz. What is the median of the data?
(a)
The box plot shows the data distribution for a recent math quiz. What is the IQR of the data?
(a)
What was the lowest and highest attendance?
0 and 36
4 and 32
8 and 28
0 and 28
What is the mean of the data set below?
33, 23, 45, 21, 18, 19, 23
26
21
27
23
Nam owns a used car lot. He checked the odometers of the cars and recorded how far they had driven. The histogram displays the data. Based on the information shown in the bar graph, which value is most likely the difference between the number of cars that drove between 250 and 300 km and the number of cars that drove between 150 and 200 km.
4
6
2
3
A teacher measures the time it takes for each student in class to complete a quiz. The first quartile value of the teacher’s data is 22 minutes. The third quartile value is 43 minutes. Which statement must be true?
About 25% of the students completed the quiz in 43 minutes or less.
About 50% of the students completed the quiz in 22 minutes or more.
Exactly 25% of the students completed the quiz in more than 43 minutes.
Exactly 50% of the students completed the quiz in 32 minutes or less.
What is the value of the third quartile shown on the box-and-whisker plot above?
6
10
8.5
12
According to the plot shown, what is the interquartile range?
4
11
8.5
6
Based on this two way table, how many total students were surveyed?
188
102
86
64
Based on this two-way table, how many students ride the bus?
30
34
64
188
What percentage of bus riders are girls?
33.33%
53.13%
18.09%
34.04%
2, 5, 12, 15, 19, 4, 6, 11, 16, 18, 12, 12, 42
What effect does removing the outlier have on the distribution of the data?
12, 13, 11, 16, 31, 14, 10, 15
Which scatterplot suggests a linear relationship between x and y?
Which profession had the greatest range of salaries?
Nuclear engineer
Police officer
Musician
Impossible to tell
Describe the correlation of the scatter plot.
positive correlation
negative correlation
no correlation
Describe the correlation of the scatter plot.
positive correlation
negative correlation
no correlation
Describe the correlation of the scatter plot.
positive correlation
negative correlation
no correlation
Which statement below best describes the data in the scatterplot?
As a car's mileage increases, the car's value increases
As a car's mileage increases, the car's value decreases
As a car's value decreases, the car's mileage stays the same
None of the above
How many people scored 35-50?
8
4
2
6
How many total people took the test?
18
17
16
15
