Finding and Comparing of Center and Spread

What is the shape of the distribution?

• symmetric

• uniform

• skewed to the right

• skewed to the left

Because this distribution is ____________ to the ___________, we would use the ______________ for the center and the _____________ for the spread of the data.

• symmetric, middle, median, IQR

• skewed, left, median, IQR

• skewed, left, mean, IQR

• skewed, right, median, standard deviation

Which describes the shape of the distribution?

• skewed right

• skewed left

• symmetric

• uniform

The dot plots show the gas mileage, in miles per gallon, for several cars and SUV's. Which type of vehicle has a larger spread?

• cars

• SUVs

Find the IQR of the distribution.

(only type in the number)

(a)  

The distribution shown is symmetric and we should use the mean and the standard deviation to describe the center and spread.

• True

• False

Find the interquartile range?

• 8

• 6

• 5

• 4

The IQR is the

• max - min

• Interquartile Range

• measure of spread that pairs with the mean

• Q₃ - Q₁

Which distribution has a larger Interquartile Range?

(a)  

Which distribution has the largest median?

(a)