Algebra Module 2 Lessons 4-6 Practice

The following data are the ages of children in child care at the local community center. Find the mean.

1, 2, 2, 4, 6

• 2

• 3

• 4

• 5

Tags

CCSS.6.SP.B.5C

The following data are the ages of children in child care at the local community center. Find the standard deviation. (Use a table or the desmos calculator.)

1, 2, 2, 4, 6

• 2

• 3

• 4

• 5

Standard deviation describes what characteristic of a set of data?

• The number of data values.

• The expected data value.

• The spread of the data values from the mean.

• The range of the data values.

Sam has 20 rose bushes. The mean number of blooms on the rose bushes is 7 with a standard deviation of 2. Which of the following statements is most true.

• Sam could expect his rose bushes to have 2 blooms each.

• Sam could expect all of his rose bushes to have 7 blooms.

• Sam could expect most of his rose bushes to have between 0 and 7 blooms.

• Sam could expect most of his rose bushes to have between 5 and 9 blooms.

Tags

CCSS.HSS.ID.A.4

Jessie is comparing the prices of meals at two different restaurants. She makes a dot plot for each of the restaurants showing the cost for each meal on the dinner menu. Which restaurant typically charges more for a meal?

• Restaurant A

• Restaurant B

• They are approximately the same

Tags

CCSS.7.SP.B.4

Jessie is comparing the prices of meals at two different restaurants. She makes a dot plot for each of the restaurants showing the cost for each meal on the dinner menu. Which restaurant offers meals at a larger variety of prices?

• Restaurant A

• Restaurant B

• The variance is about the same.

Tags

CCSS.7.SP.B.4

Jessie is comparing the prices of meals at two different restaurants. She makes a dot plot for each of the restaurants showing the cost for each meal on the dinner menu. Which restaurant's data set would have a smaller standard deviation?

• Restaurant A

• Restaurant B

• The variance is about the same.

The data set below gives the numbers of home runs for the 10 batters who hit the most home runs during the 2010 Major League Baseball regular season. Find the standard deviation using the desmos calculator.

55, 59, 49, 58, 42, 56, 52, 48, 44, 49

• 5.8

• 51.2

• 5.5

• 49.6

The data set below gives the numbers of home runs for the 10 batters who hit the most home runs during the 2010 Major League Baseball regular season. Find the mean using the desmos calculator.

55, 59, 49, 58, 42, 56, 52, 48, 44, 49

• 5.8

• 51.2

• 5.5

• 49.6

Tags

CCSS.6.SP.B.5C

The greater the variability (spread) of the distribution, the _____________ the deviations from the mean.

• smaller

• closer

• greater

• more approximate

Tags

CCSS.7.SP.A.2