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

What is the median?

• biggest- smallest
• average
• the middle #
• # that happens the most

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

The 75th percentile is also know as the

• median
• third quartile
• 1st quartile`
• interquartile range

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

Find the median, mode and range: 
3, 5, 7, 9, 11, 8, 3

• median:7  mode:3  range:10
• median:6  mode:3  range:7
• median:7  mode:3 range:8

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

Shape?

• Skewed right

• Skewed left

• Symmetric

• Normal

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

When the mean is less than the mode this leads to a ...

• positive skew

• negative skew

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

The mean of this data set is 17.8. What would happen to the mean if 40 was added to the data set?

• The mean would not change

• The mean would go up

• The mean would go down

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

When you add a positive constant to a random variable the effects on the random variables distribution are as follows:

• the shape is changed, the mean is increased by a value of "a" and the standard deviation is unchanged.

• the shape and standard deviation are unchanged and the mean is increased by a value of "a".

• all three aspects are unchanged

• the shape and mean are unchanged and the standard deviation is increased by a value of "a".

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

During Michael Jordan's last 5 years of playing basketball, these were his average scores for points per game:

30.4, 29.6, 28.7, 22.9, 20.0

Find the mean pointsper game for those 5 years.

• 32.9

• 26.32

• 28.7

• 22.32

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

Interquartile Range is

• the difference between the third quartile and the first quartile

• the difference between the greatest and least data values.

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

Shown is a residual plot. How many positive residuals are there?

• 5

• 1

• 3

• 9

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