Statistics Test

Statistics Test

7th Grade

10 Qs

quiz-placeholder

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Statistics Test

Statistics Test

Assessment

Quiz

Mathematics

7th Grade

Practice Problem

Hard

CCSS
7.RP.A.3

Standards-aligned

Created by

Anthony Clark

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Anh is investigating the heights of a group of students:
158cm     172cm      164cm
164cm     167cm      159cm
 What is the range of the heights?

13cm

14cm

164cm

330cm

Answer explanation

The range of heights is calculated by finding the difference between the highest and lowest values. In this case, the range is 172cm - 158cm = 14cm, so the correct answer is 14cm.

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Find the medians.
Science: _________ Math: __________ 

 science: 4.5 h; math: 3 h

 science: 3 h; math: 4.5 h

 science: 5 h; math: 5 h

 science: 3.5 h; math: 4 h

Answer explanation

The correct medians are science: 3 h; math: 4.5 h, as the median is the middle value when the data is arranged in ascending order.

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The dot plots show the ages of students at two different arcades. Which statement is best supported by the information in the dot plots?

The range of the age of students at Arcade A is greater than the range of age of students at Arcade B.

The distribution of the data for Arcade A and Arcade B are approximately symmetrical.

The median age of students at Arcade A is greater than the median age of students at Arcade B.

The maximum age at Arcade B is less than the maximum age at Arcade A.

Answer explanation

The median age of students at Arcade A is greater than the median age of students at Arcade B.

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Marvin's grades currently in math are 100, 97, 98, 74, and 85. Gavin's grades currently in math are 98, 100, 88, 91, and 65. Which student has the highest mean score?

Marvin

Gavin

Answer explanation

Marvin has the highest mean score because his average grade is higher than Gavin's average grade when considering all the grades provided.

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Ten fourth-grade girls and ten seventh-grade girls were randomly selected. Their heights, in inches, are recorded below.


4th Grade

56, 47, 54, 51, 53, 58, 48, 54, 46, 53


7th Grade

57, 58, 60, 64, 62, 52, 57, 60, 65, 55


Which grade level has the greatest difference (range) in height?

4th Grade

7th Grade

Answer explanation

The 4th Grade has the greatest difference in height (range) as the range of heights in 4th Grade is 12 inches (58-46) while the range in 7th Grade is 13 inches (65-52).

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

If 44 values were used for the data, about how many data values are greater than the 1st quartile?

11

22

33

128

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which is NOT ture?

The spreads of the low temperatures for Reybold and Picktown are not the same

Neither box plot is symmetrical

The median low temeratures for Reybold and Picktown are different

The lower extreme for Picktown is approximately 5 degrees lower than the lower extreme for Reybold

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