Mean and Median and Skew from Density Curves

Find the median:
3, 5, 7, 4, 3, 1

• 3 and 4

• There isn't one

• 3.5

• 3

When finding the median, what do you do if there are two middle numbers?

• Add them together and divide by 2

• Write them both as the answer

• Give up

• Pick one

Find the median.
12, 5, 9, 18, 22, 25, 5

• 9

• 8

• 12

• 18

What is the median of the data set?

• 6

• 7

• 5.5

• 9

In the figure, the mean is greater than the median because the distribution is...

• Symmetrical

• Skewed to the right

• Skewed to the left

• Uniform

How would you describe this data?

• mean=median

• mean is higher than median

• mean is lower than median

• mode =median

The number of text messages that Isaac received each day for a week has a mean of 50 and a median of 49. What can you say about the distribution?

• It is skewed left

• It is skewed right

• Not enough information

• It is symmetric

What is the best description of the data?

• mean=median

• mean is higher than median

• mean is lower than median

• mode =median

The distribution of data is skewed right. What is the relationship between the mean and median?

• median > mean

• mean > median

• mean = median

• Impossible to tell.

For which of the following distributions is the mean greater than the median?

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