AnswersFoundations of Math 1Summarizing Data Sets with Statistics

Summarizing Data Sets with Statistics — Quiz Answers

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The list shows the prices of T-shirts at a clothing store. start set 8 comma 10 comma 10 comma 12 comma 15 comma 15 comma 18 end set Which statement best describes the mean of this set?

A
the sum of the prices divided by 7
B
the difference between the least and greatest prices
C
the quotient of the difference between the least and greatest prices divided by 7
D
the sum of the prices
3

Which statement best describes the interquartile range of this set of weights? start set 120 pounds comma 115 pounds comma 135 pounds comma 105 pounds comma 80 pounds comma 160 pounds end set

A
the difference between the second and fifth elements of the set as it is written above
B
the difference between the first and sixth elements of the set after it has been ordered from least to greatest
C
the difference between the first and sixth elements of the set as it is written above
D
the difference between the second and fifth elements of the set after it has been ordered from least to greatest
4

The median age of the science teachers at Mike’s school is the same as the median age of the math teachers, but the ages of the math teachers show greater variability. Which statement most likely describes the data sets?

A
There are more math teachers than science teachers at Mike’s school.
B
The difference in ages between the oldest and youngest math teachers is greater than the difference in ages between the oldest and youngest science teachers.
C
The average age of the math teachers at Mike’s school is greater than the average age of the science teachers.
D
The oldest teacher in Mike’s school is a mathematics teacher.
5

Two basketball players average the same number of points per game. What information would be most helpful in determining which player’s game performances show the least variability?

A
the number of games each player has played
B
the total number of points each player has scored
C
the average number of points each player’s team scores per game
D
the most and least points each player has scored in a game
8

Which set has the greatest range?

A
start set 10 comma 14 comma 8 comma 19 comma 22 comma 13 comma 44 end set
B
start set 19 comma 16 comma 50 comma 18 comma 29 comma 23 comma 37 end set
C
start set 11 comma 9 comma 31 comma 29 comma 15 comma 17 comma 20 comma 24 end set
D
start set 12 comma 6 comma 24 comma 20 comma 44 comma 15 comma 29 end set
9

The head of the math department compared the scores of students in two classes on the Chapter 2 test. He found that the mean score of both classes was the same. He also found that there was greater variability in the scores of Ms. Biren’s students than in the scores of Mr. Hayes’s students. Which quality of the data sets would lead the department head to that conclusion?

A
The range of scores in Ms. Biren’s class is greater than the range of scores in Mr. Hayes’s class.
B
The range of scores in Ms. Biren’s class is less than the range of scores in Mr. Hayes’s class.
C
The median score in Ms. Biren’s class is greater than the median score in Mr. Hayes’s class.
D
The median score in Ms. Biren’s class is less than the median score in Mr. Hayes’s class.
10

Which set has the greatest range?

A
start set 19 comma 16 comma 50 comma 18 comma 29 comma 23 comma 37 end set
B
start set 12 comma 6 comma 24 comma 20 comma 44 comma 15 comma 29 end set
C
start set 10 comma 14 comma 8 comma 19 comma 22 comma 13 comma 44 end set
D
start set 11 comma 9 comma 31 comma 29 comma 15 comma 17 comma 20 comma 24 end set

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