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18 questions
Which statistic can not be determined from a box plot representing the scores on a math test in Mrs. DeRidder’s algebra class?
the lowest score
the median score
the highest score
the score that occurs most frequently
The dot plot shown below represents the number of pets owned by students in a class.
Which statement about the data is not true?
The median is 3.
The interquartile range is 2.
The mean is 3.
The data contain no outliers.
The table below shows the annual salaries for the 24 members of a professional sports team in terms of millions of dollars.
The team signs an additional player to a contract worth 10 million dollars per year. Which statement about the median and mean is true?
Both will increase.
Only the median will increase.
Only the mean will increase.
Neither will change.
Corinne is planning a beach vacation in July and is analyzing the daily high temperatures for her potential destination. She would like to choose a destination with a high median temperature and a small interquartile range. She constructed box plots shown in the diagram below.
Which destination has a median temperature above 80 degrees and the smallest interquartile range?
Ocean Beach
Whispering Palms
Serene Shores
Pelican Beach
Isaiah collects data from two different companies, each with four employees. The results of the study, based on each worker’s age and salary, are listed in the tables below.
Which statement is true about these data?
The mean age of workers at company 1 is greater than the mean age of workers at company 2.
The median salaries in both companies are greater than $37,000.
The mean salary in company 1 is greater than the mean salary in company 2.
The salary range in company 2 is greater than the salary range in company 1.
Christopher looked at his quiz scores shown below for the first and second semester of his Algebra class.
Semester 1: 78, 91, 88, 83, 94
Semester 2: 91, 96, 80, 77, 88, 85, 92
Which statement about Christopher’s performance is correct?
The third quartile for semester 2 is greater than the third quartile for semester 1.
The interquartile range for semester 1 is greater than the interquartile range for semester 2.
The median score for semester 1 is greater than the median score for semester 2.
The mean score for semester 2 is greater than the mean score for semester 1.
How many total people were surveyed?
78
22
70
100
How many total have an MP3 player?
13
57
70
100
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