Data Collection and Measures of Center and Spread

The following symbol represents what?

• the sample mean

• the population mean

• the sample standard deviation

• the population standard deviation

• the sample size

An entire data set can be summarized using one statistic. This statistic is most likely the _______.

• mode

• standard deviation

• range

• mean

Jade subtracted the smallest value from the largest value in the data set. What statistic was she calculating?

• standard deviation

• range

• variance

• mean

The largest number in a data set is referred to as the ______.

• min

• max

• median

• mean

The ____________ is equal to the standard deviation squared.

• standard deviation

• range

• variance

• maximum value

The middle value in a data set when the numbers are listed in order is referred to as the ________.

• mean

• median

• mode

• center

According to the picture, what is the standard deviation of the data set?

• 6.3

• 44

• 3.6

• 3.3

Which statistics measures how spread out the data values are in a data set?

• mean

• mode

• maximum value

• standard deviation

The following symbol represents what?

• the sample mean

• the population mean

• the sample standard deviation

• the population standard deviation

• the sample size

According to the Empirical Rule, what percentage of data values lie within ONE standard deviation of the mean?

• 68%

• 95%

• 99.7%

• 100%