Data Analysis and Displays

Interquartile Range is

• the difference between the third quartile and the first quartile

• the difference between the greatest and least data values.

What is the mode?

• Number that occurs the most

• The Average

• The difference between the highest and lowest values

• The Number in the middle

Display shows number of items in specific categories [like colors, foods, grades...]

• Bar Graph

• Box Plot

• Line Graph

What is the range of the following data?

• 83

• 75

• 58

• 82

Does the box and whiskers plot match the given data below?

56 , 46 , 60 , 52 , 71 , 43 , 44

Choose all of the following that are correct regarding the data:

• The mode is 61

• The median is 56.5

• The maximum is 72

• The interquartile range is 17.5

• The range is 36

The equation of the line of best fit for the points given is determined. Then, three more points are added to the scatter plot, but the equation of the original line of best fit remains unchanged. Which three ordered pairs are most likely the added data points?

• (4,8) , (5,9) , (6,10)

• (9,8) , (10,7) , (12,10)

• (8,9) , (7,10) , (10,12)

• (2,2) , (3,3) , (4,4)

The bar graph shows the average gallons of gasoline that people purchase at a corner gas station each day. Based on the information shown in the bar graph, what is the difference between the number of gallons of unleaded and the gallons of plus over the next five days?

• 320

• 360

• 60

• 300

The scatter plot below shows the number of cupcakes consumed (y) and the number of wedding guests (x). Based on the scatter plot, predict how many cupcakes are needed if 500 guests are attending the next wedding.

• 306

• 812

• 647

• 428

Haris has a fruit stand and kept track of how many items he sold each day. Those numbers are listed below.

36, 30, 36, 23, 27, 26, 32

The circle graph represents the types of fruit sold during the previous week. Based on the data and the circle graph, how many more peaches than mangos will be sold one day next week?

• 9

• 3

• 6

• 7