2019 Summer Math Practice Gr. 7  Statistics and Probability
Complete all questions and submit at end. This is part of your summer math packet. All 5 parts must be completed by September 3, 2019. These questions are to reinforce statistics and probability from 6th grade.
Please do not use a calculator.
When answering please submit just a numerical answer.
* Required
Last Name
*
Your answer
First Name
*
Your answer
6th Grade Cluster
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Your answer
The data below are the number of text messages you send a day. Find the mean of the data.
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10, 12, 20, 8, 6, 10, 18
Your answer
The data below are the number of text messages you send a day. Find the median of the data.
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10, 12, 20, 8, 6, 10, 18
Your answer
The data below are the number of text messages you send a day. Find the mode of the data.
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10, 12, 20, 8, 6, 10, 18
Your answer
The data below are the number of text messages you send a day. Find the range of the data.
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10, 12, 20, 8, 6, 10, 18
Your answer
How do you calculate the mean?
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Add the numbers in the data set
Add the numbers in the data set and then divide by the quantity in the data set
Look for the number that occurs most often
Work you way from the outside in till you get to the middle
The absolute value is always ____________.
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Choose
postive
negative
What does MAD mean?
*
multiplication, addition, divide
mean absolute deviation
Using the histogram "Student Attendance", which interval contains the most data values?
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03
47
811
What is the percent of students who missed 8 or more classes?
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Refer to "Student Attendance"
10%
12%
15%
35%
Find the mean absolute deviation of the data for "Height". Round your answer to the nearest tenth, if necessary.
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Step 1: Find the mean of the data. Step 2: Find the absolute distance between each data value and the mean. Step 3: Find the sum of the absolute distances in Step 2. Step 4: Divide the sum in Step 3 by the total number of data values.
Your answer
How many students responded to the "Number of Pets" question?
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Your answer
What is the mean of the data?
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Refer to "Number of minutes studied"
Your answer
Is there an outlier?
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Refer to "Number of minutes studied"
Choose
Yes
No
What is the peak of the data?
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Refer to "Number of minutes studied"
Your answer
What is the range of magnitude?
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Refer to "Rat Island Data Chart"
Your answer
What is the average magnitude?
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Refer to "Rat Island Data Chart"
Your answer
What was the average score on the science test?
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Refer to "Stem and Leaf Plot  Scores on Science Test"
Your answer
What was the median score on the science test?
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Refer to "Stem and Leaf Plot  Scores on Science Test"
Your answer
What was the range on the science test?
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Refer to "Stem and Leaf Plot  Scores on Science Test"
Your answer
The boxandwhisker plot represents the closing times of businesses in a town. What percent of the businesses close at 10 P.M. or later?
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Refer to "Closing Time"
20%
25%
50%
75%
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