WorksheetsUnit 10: Data Analysis
Total questions: 15
Worksheet time: 42mins
What is the mode?
88%
89%
97%
91%
Mr. Johnston made a list of the ages of students in his adult art class and put the data in the stem and leaf plot above. Which statement is supported by the information in the stem and leaf plot?
The oldest person is 49.
There are 2 people older than 45.
There are four people in their thirties.
The youngest person in the class is 21.
Which of the following best describes the process of finding the range for a set of data?
ADD the biggest and smallest numbers
Place the number in order from least to greatest then find the middle.
Find the difference between the Maximum and the Minimum.
Find the average.
Describe the histogram:
Left Skewed
Symmetrical
Right Skewed
Asymetrical
Mr. Diaz created the box plot shown to summarize the grades on a recent assignment. Which statement is a valid conclusion based on this box plot?
The lowest grade earned on the assignment was 20%.
The mean for this data set is 65%
50% of the students earned a score greater than or equal to 65%
Twice as many students earned a grade of 65-85% as those who earned a grade of 55-65%.
A cell phone company recorded the number of apps on teen cell phones at the time of transfer. The information is summarized in the box plot shown below.
Based on the box plot, which of the following is NOT true?
75% of the cell phones had greater than or equal to 33 apps
50% of the cell phones had less than or equal to 29 apps
25% of the cell phones had less than or equal to 23 apps
100% of the cell phones had greater than or equal to 20 apps
The number of boys and girls in Ms. Cottontail's math class are equal. The box plot represents the average amount of time the students spent studying for a unit exam.
Based on the information in the box plots, which statement appears to be true?
The median amount of time spent studying by the girls was less than the median amount of time spent studying by the boys.
The range for the girls was 5 minutes more than the range for the boys.
The interquartile range for the boys was less than the interquartile range for the girls.
The minimum amount of time the boys spent studying was greater than the minimum amount of time the girls spent studying.
