Common Core: 6th Grade Math : Statistics & Probability

Study concepts, example questions & explanations for Common Core: 6th Grade Math

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Example Questions

Example Question #7 : Compare The Measure Of Center And Measure Of Variation: Ccss.Math.Content.6.Sp.A.3

Mr. Sommers wanted to see how much money his students spent on school lunch in a given day. The distribution of this data is shown in the plot provided. Use the information provided in the plot to fill in the blank of the table. 

1  Screen shot 2016 03 30 at 1.05.23 pm

Possible Answers:

Correct answer:

Explanation:

The table shows how far away each data value is from the mean. In order to solve for the missing piece of the table, we first need to solve for the mean:

In order to solve for the mean, we need to add up all of the money spent on lunch, and then divide by the number of addends in our set:

The mean for this data set is 

Next, we can subtract the data value from the mean to find the deviation from the mean:

The correct answer is 

Example Question #8 : Compare The Measure Of Center And Measure Of Variation: Ccss.Math.Content.6.Sp.A.3

Mr. Sommers wanted to see how much money his students spent on school lunch in a given day. The distribution of this data is shown in the plot provided. Use the information provided in the plot to fill in the blank of the table. 

1  Screen shot 2016 03 30 at 1.05.59 pm

Possible Answers:

Correct answer:

Explanation:

The table shows how far away each data value is from the mean. In order to solve for the missing piece of the table, we first need to solve for the mean:

In order to solve for the mean, we need to add up all of the money spent on lunch, and then divide by the number of addends in our set:

The mean for this data set is 

Next, we can subtract the data value from the mean to find the deviation from the mean:

The correct answer is 

Example Question #9 : Compare The Measure Of Center And Measure Of Variation: Ccss.Math.Content.6.Sp.A.3

Mr. Sommers wanted to see how much money his students spent on school lunch in a given day. The distribution of this data is shown in the plot provided. Use the information provided in the plot to fill in the blank of the table. 

1  Screen shot 2016 03 30 at 1.07.27 pm

Possible Answers:

Correct answer:

Explanation:

The table shows how far away each data value is from the mean. In order to solve for the missing piece of the table, we first need to solve for the mean:

In order to solve for the mean, we need to add up all of the money spent on lunch, and then divide by the number of addends in our set:

The mean for this data set is 

Next, we can subtract the data value from the mean to find the deviation from the mean:

The correct answer is 

Example Question #10 : Compare The Measure Of Center And Measure Of Variation: Ccss.Math.Content.6.Sp.A.3

Mr. Sommers wanted to see how much money his students spent on school lunch in a given day. The distribution of this data is shown in the plot provided. Use the information provided in the plot to fill in the blank of the table. 

1  Screen shot 2016 03 30 at 1.08.04 pm

Possible Answers:

Correct answer:

Explanation:

The table shows how far away each data value is from the mean. In order to solve for the missing piece of the table, we first need to solve for the mean:

In order to solve for the mean, we need to add up all of the money spent on lunch, and then divide by the number of addends in our set:

The mean for this data set is 

Next, we can subtract the data value from the mean to find the deviation from the mean:

The correct answer is 

Example Question #11 : Compare The Measure Of Center And Measure Of Variation: Ccss.Math.Content.6.Sp.A.3

Mr. Sommers wanted to see how much money his students spent on school lunch in a given day. The distribution of this data is shown in the plot provided. Use the information provided in the plot to fill in the blank of the table. 

1  Screen shot 2016 03 30 at 1.09.06 pm

Possible Answers:

Correct answer:

Explanation:

The table shows how far away each data value is from the mean. In order to solve for the missing piece of the table, we first need to solve for the mean:

In order to solve for the mean, we need to add up all of the money spent on lunch, and then divide by the number of addends in our set:

The mean for this data set is 

Next, we can subtract the data value from the mean to find the deviation from the mean:

The correct answer is 

Example Question #31 : Statistics & Probability

Mr. Sommers wanted to see how much money his students spent on school lunch in a given day. The distribution of this data is shown in the plot provided, with each x representing one student in his class. What is the median amount of money that a student spends on lunch?

1

Possible Answers:

Correct answer:

Explanation:

In order to solve for median, we need to list all of our data points in order from least to greatest:

Next, we want to find the number, or numbers that are in the middle:

The center of distribution, using the median, is 

Example Question #1 : Display Numerical Data In Plots: Ccss.Math.Content.6.Sp.B.4

Miss. Little wants to know how many pairs of shoes each of her students owns. She decides to ask each of her students to write the number of pairs of shoes that he or she owns. This data is displayed in the provided chart. Select the answer that contains the dot plot that most accurately displays Miss Little's class data. 

Screen shot 2016 03 30 at 1.42.15 pm

Possible Answers:

4

3

5

2

Correct answer:

2

Explanation:

A dot plot is a graph that displays data using a number line. In these plots, data is tabulated by placing a dot above each value on the number line that is represented by a particular observation. In this case, the number of shoes will be the number line values and each dot represents the number of pairs of shoes that a student owns.

The first step to making a dot plot is to organize the data from least to greatest:

Next, we place a dot above each number on the number line to represent the number of pairs of shoes that a student owns. If done correctly, then the dot plot should look something like the following: 

2

Example Question #2 : Display Numerical Data In Plots: Ccss.Math.Content.6.Sp.B.4

Miss. Little wants to know how many pairs of shoes each of her students owns. She decides to ask each of her students to write the number of pairs of shoes that he or she owns. This data is displayed in the provided chart. Select the answer that contains the box plot that most accurately displays Miss Little's class data. 

Screen shot 2016 03 30 at 1.42.15 pm

Possible Answers:

9

7

6

8

Correct answer:

6

Explanation:

A box plot is often called a box and whiskers plot because of way the graph looks once constructed. In order to construct a box plot, we need to calculate the following values from our data set:

  1. Minimum value
  2. Maximum value
  3. Median
  4. Lower quartile median
  5. Upper quartile median

In order to find these values, we need to first organize the data from least to greatest:

Now that we have organized the data, we can pull out the minimum and maximum values:

 and 

Next, we can solve for the median by finding the middlemost number in our data:

Now that we have the median, , we can split our data into the lower quartile and upper quartile using that value: 

We want to find the median—or middlemost number—of the lower quartile and the median—or middlemost number—of the upper quartile:

If done correctly, then you should have calculated the following values:

  1. Minimum value: 
  2. Maximum value: 
  3. Median: 
  4. Lower quartile median: 
  5. Upper quartile median: 

Now, we can start constructing the box plot. The first thing we need to do is create a number line that ranges from our minimum to our maximum value and put a dot above all of the values we calculated above:

5

Finally, we connect the minimum value to the lower quartile with a line and the maximum value to the upper quartile with a line. Then, we will draw a box that connects the lower and upper quartiles. Finally, we draw a vertical line from the top of the box to the bottom, that goes through the median point. If done correctly, then the box plot should look something like the following: 

6

 

Example Question #1 : Display Numerical Data In Plots: Ccss.Math.Content.6.Sp.B.4

An Environmental Science Class wanted to look at the average temperature for each day this past month. This data is displayed in the provided chart. Select the answer that contains the dot plot that most accurately displays the class's data. 

Screen shot 2016 03 31 at 8.19.44 am

Possible Answers:

15

1

13

14

Correct answer:

1

Explanation:

A dot plot is a graph that displays data using a number line. In these plots, data is tabulated by placing a dot above each value on the number line that is represented by a particular observation. In this case, the average temperature will be the number line values and each dot represents each day that the the average temperature was that particular degree.

The first step to making a dot plot is to organize the data from least to greatest:

Next, we place a dot above each number on the number line to represent the number of days that the average temperature was each particular degree. If done correctly, then the dot plot should look something like the following: 

1

Example Question #4 : Display Numerical Data In Plots: Ccss.Math.Content.6.Sp.B.4

An Environmental Science Class wanted to look at the average temperature for each day this past month. This data is displayed in the provided chart. Select the answer that contains the box plot that most accurately displays the class's data. 

Screen shot 2016 03 31 at 8.19.44 am

Possible Answers:

17

18

19

20

Correct answer:

17

Explanation:

A box plot is often called a box and whiskers plot because of way the graph looks once constructed. In order to construct a box plot, we need to calculate the following values from our data set:

  1. Minimum value
  2. Maximum value
  3. Median
  4. Lower quartile median
  5. Upper quartile median

In order to find these values, we need to first organize the data from least to greatest:

Now that we have organized the data, we can pull out the minimum and maximum values:

 and 

Next, we can solve for the median by finding the middlemost number in our data:

Now that we have the median, , we can split our data into the lower quartile and upper quartile using that value: 

We want to find the median—or middlemost number—of the lower quartile and the median—or middlemost number—of the upper quartile:

If done correctly, then you should have calculated the following values:

  1. Minimum value: 
  2. Maximum value: 
  3. Median: 
  4. Lower quartile median: 
  5. Upper quartile median: 

Now, we can start constructing the box plot. The first thing we need to do is create a number line that ranges from our minimum to our maximum value and put a dot above all of the values we calculated above:

16

Finally, we connect the minimum value to the lower quartile with a line and the maximum value to the upper quartile with a line. Then, we will draw a box that connects the lower and upper quartiles. Finally, we draw a vertical line from the top of the box to the bottom, that goes through the median point. If done correctly, then the box plot should look something like the following: 


17

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