Analyze and Compare Data Sets

Compare the two data sets. Which statements are correct?

Data set 1: {19, 27, 19, 24, 21, 20, 23, 29, 25, 26, 33}
Data set 2: {27, 17, 36, 20, 23, 25, 15, 29, 29, 30, 18}

• The mean for data set 1 is smaller than data set 2.

• The range for data set 1 is larger than data set 2.

• The median for data set 1 is smaller than data set 2.

• The interquartile range for data set 1 is smaller than data set 2.

Estimate the percentage of complaints about rude sales clerks. (nearest whole percent)

• 11%

• 16%

• 19%

• 30%

Identify the median and calculate the interquartile range.

Choose the answers that are correct.

• Mean

  30.8

• Median

  37

• Mode(s)

  25 and 32

• Range

  55

• Outlier(s)

  7 and 62

Which Class has the highest frequency?

• 2.5-3.0

• 0.5-4.0

• 2.5-3.5

• 3.0-3.5

Small packages of raisins contain different numbers of raisins in each package. The dot plot here shows the distribution of the number of raisins found in 15 individual packages. What can you conclude from this dot plot?

• The most common number of raisins per box was 24.

• 
  The most common number of raisins per box was 25.

• 
  More packages contained 25 raisins than 23 raisins.

• More packages contained 22 raisins than 23 raisins.

According to the histogram, how many shipments had more than 20 light bulbs broken?

• 4

• 6

• 7

• 12

Consider the data set on the number line. Determine the mean absolute deviation. Round to the nearest tenth.

• 7.1

• 8.3

• 9.1

• 13.5

Consider the characteristics of the center, shape, spread, and any unusual features. Which statement correctly describes the data?

• There is an outlier at 7.

• The mode and median are 7.

• The range of the data is 10.

• The data shows a negative skew.

• There are no outliers in the data.

What is the correlation coefficient, to the nearest hundredth, for these data?