Patterns of Data

The teacher writes the following two patterns on the board:

Pattern X: Start at 0 and add 3.

Pattern Y: Start at 0 and add 6.

Which describes the relationship between the corresponding terms in the two patterns?

• The terms in Pattern X are 2 times the terms in Pattern Y.

• The terms in Pattern X are 3 times the terms in Pattern Y.

• The terms in Pattern Y are 2 times the terms in Pattern X.

• The terms in Pattern Y are 3 times the terms in Pattern X.

Steve sold peach and strawberry pies for three days. He recorded his total number sold in the chart.

He wants to plot his data on a graph. What ordered pair should he plot for the total number of strawberry pies sold on the third day?

• (45, 36)

• (36, 45)

• (3, 36)

• (3, 45)

What is the shape of this bar graph?

• Skew right

• Skew left

• Symmetrical

• uniform

The following dot plot is

• skewed left

• skewed right

• symmetrical

The following dot plot

• skewed left

• skewed right

• symmetrical

Identify the outlier for the given data?

23, 34, 27, 7, 30, 26, 28, 31, 34

• 7

• 23

• 31

• 34

Your math grades are 90, 85, 0, 90, 80, 100, and 90. Which grade is the outlier?

• 90

• 0

• 80

• 100

The prices at several different stores for a pair of shoes are

$78, $79, $81, $82, $83. Two days later, another store has the same shoes on sale for $65. How does the new price affect the data?

• Nothing will be affected.

• The median will increase.

• The mean and the median will increase.

• The mean will decrease.

The data set below has an outlier of 42.

2, 5, 12, 15, 19, 4, 6, 11, 16, 18, 12, 12, 42

What effect does removing the outlier have on the measures of center?

• The median will decrease

• The mean will decrease

• The mean will increase

• The median will increase

What is the outlier in the following data?

11, 19, 17, 8, 37, 11, 19, 16, 22

• 22

• 8

• 37

• 22