CCSS.Math.Content.HSS.ID.A.3

Mrs. Jones surveyed the class for the number of letters in their given first name. The data is recorded below.
{5, 8, 6, 5, 4, 9, 8, 7, 6, 3, 8, 7, 5, 6, 7, 8}
What is the interquartile range of the data?

• 2
• 3
• 7
• 8

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CCSS.Math.Content.HSS.ID.A.3

What is the median?

• The value that occurs the most often in a data set
• The middle number in an ordered set of data
• The sum of all the numbers in a data set divided by the size
• The sum of the between the greatest and the least elements, divided by two

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CCSS.Math.Content.HSS.ID.A.3

The histogram shows the typical travel time to school (self-reported) for 50 high school students. Which of the following statements is true about the mean and median of this distribution?

• Mean > Median
• Mean < Median
• Mean = Median
• Mean ≈ Median

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CCSS.Math.Content.HSS.ID.A.3

Given the following data set
6, 9, 12, 14, 7, 9, 6, 8, 25, 12, 14
What is the mean of the data set without the outlier(s)?

• 9.2
• 9.7
• 11.1
• 12.4

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CCSS.Math.Content.HSS.ID.A.3

The following dot plot is

• skewed left

• skewed right

• symmetrical

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CCSS.Math.Content.HSS.ID.A.3

The following dot plot

• skewed left

• skewed right

• symmetrical

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CCSS.Math.Content.HSS.ID.A.3

Calculate the mean and median for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7

• mean: 7 median: 7

• mean: 7.44 median: 8

• mean: 7 median: 7.44

• mean: 7.44 median: 7

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CCSS.Math.Content.HSS.ID.A.3

The data set below has an outlier of 42.

2, 5, 12, 15, 19, 4, 6, 11, 16, 18, 12, 12, 42

What effect does removing the outlier have on the distribution of the data?

• The mean will decrease if the outlier was removed.

• The median will decrease if the outlier was removed.

• The mean will increase if the outlier was removed.

• The IQR will increase if the outlier was removed.

• The median will increase if the outlier was removed.

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CCSS.Math.Content.HSS.ID.A.3

Jacob recorded the ages of the people at a picnic. The data set is listed below.

12, 12, 14, 15, 16, 20, 24, 28, 32, 35, 36

What effect does the arrival of Jacob’s 72-year old grandfather have on the mean age of people at the picnic?

• It increases by about 4.2.

• It increases by about 6.6.

• It decreases by about 4.2.

• It decreases by about 6.6.

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CCSS.Math.Content.HSS.ID.A.3

The scores of an English test out of 100 of 20 students are given below :

75, 69, 88, 55, 95, 88, 73, 64, 75, 98, 88, 95, 90, 95, 88, 44, 59, 67, 88, 99.

Find the median

• 90

• 88

• 95

• 100

Tags

CCSS.Math.Content.HSS.ID.A.3