Question

The _________ is calculated by summing all data values and dividing by how many there are.

The ______is a number that splits the data set in half.ere are.

The mean is resistant. True or False

A number that is not affected much by extreme values, such as the median, is ______.

Match the relationship that holds for most data sets between the shape of the histogram and the values of the mean and median.

____	Skewed to the left
____	Approximately symmetric
____	Skewed to the right

1.	The mean is noticeably greater than the median.
2.	The mean is approximately equal to the median.
3.	The mean is noticeably less than the median.

If it exists, the mode is always a value that appears in the data set. True or False

The U.S. Census Bureau reports that in the year 2008, the mean household income was $68,424 and the median was $50,303. If a histogram were constructed for the incomes of all households in the United States, would you expect it to be skewed to the right, skewed to the left, or approximately symmetric?

Question options:

	Skewed left
	Skewed right
	Approximately symmetric

Answer 1

The mean is calculated by summing all data values and dividing by how many there are.

The _median is a number that splits the data set in half.
The mean is resistant. False

A number that is not affected much by extreme values, such as the median, is resistant.

Skewed to the left : 3)The mean is noticeably less than the median.

Approximately symmetric 2) The mean is approximately equal to the median

Skewed to the right : 1) The mean is noticeably greater than the median

2)

since mean is greater than median: Skewed right