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Mean, median, mode, range, and outliers
Mean Absolute Deviation (MAD)
Box-and-Whisker-Plots
Spiral Review
100

Find the mean of the following set of data: 13, 23, 21, 20, 21, 24, 18

What is the mean is 20

100

Explain each step that you would use to find the mean absolute deviation of a data set.

What is 1.) Find the mean of your data set (add all numbers, divide by the amount of numbers in your data set). 2.) Use your quotient (mean) and subtract that number from each number in your data set (if any numbers become negative, take away the negative sign). 3.) You should have a new data set, now find the mean of your new data set (add the numbers and divide by the amount of numbers in your data set). 4.) Your quotient (mean) is your mean absolute deviation.

100

Make a box and whisker plot for the following data: 7, 1, 0, 4, 8, 3, 10

What is you should have points at the numbers: 0 (least value) 1 (lower quartile) 4 (median) 8 (upper quartile) 10 (greatest value) See example on board

100

The expression for twice a number minus 4

What is 2n - 4

200

What is the mode: 10, 9, 4, 4, 8, 8, 8, 4, 7, 6, 11, 14, 27

What is 4 and 8

200
Find the mean absolute deviation of the following data set: 5, 6, 7, 4, 3
What is the MAD is: 1.2
200
Find the interquartile range for the data set: 12, 14, 11, 10, 9, 10, 9
What is the IQR = 3 - put the numbers in order from least to greatest - find the median - find the difference between the first quartile (9) and third quartile (12)
200
This expression simplified 2n + n + 4y + 5n - y
What is 8n + 3y
300

What is the range in the set of data. 14, 8, 17, 21, 11, 3, 13

What is 18

300
The number of points Maggie has scored in each of the first 5 games of the basketball season are 14, 17, 17, 13, and 34. What is the mean absolute deviation for the number of points for Maggie's first 5 games?
What is 6.
300
A solution used to kill bacteria is tested The solution kills the following percentages of bacteria in six trials: 85, 84, 87, 86, 90, 80 Use the data to make a box-and-whisker plot.
What is your box-and-whisker plot should have the following points: 80 (least value) 84 (lower quartile) 85.5 (median) 87 (upper quartile) 90 (greatest value)
300

Solve showing all the steps: 2x - 6 = -2

What is x = 2

400

What is the median of the values: 5, 8, 2, 4, 4, 6, 7

What is: 5

400
There are 7 animal shelters in the local area. The number of cats in each is 4, 6, 3, 7, 4, 5, and 20. What is the mean absolute deviation for the number of cats in shelters to the nearest tenth?
What is 3.7.
400

Find the interquartile range, round to the nearest tenth if necessary: 5, 2, 4, 7, 4, 4, 1

What is 3

400

What is the cost per package of the butter?  3 packages for $9.75.

What are $3.25 per package.

500

What is the definition of the term mode?

What is the value or values that occur the most often in a set of data.

500
Find the mean absolute deviation, round to the nearest tenth. 23, 37, 33, 39, 29, and 31
What is 4.3
500

The amount of rainfall (in inches) for each of the first 5 months of the year is 1, 3, 8, 4, and 4. What is the range and IQR of inches of rain for the first 5 months of the year?

What is range =7 and IQR = 4

500

y = 4 and c = 2 and x= 3 4x + 3c - 2y

What is 4(3) + 3(2) - 2(4) 12 + 6 - 8 18 - 8 = 10