9-10 Quiz - 2.1 and 2.2 Graphs and Displays

 A study was conducted to determine how certain families pay on their credit card balances.  Two hundred families with a household annual income between 25, 000 and 49, 999 were randomly selected and the results are listed below. What percentage of household is “Almost Always Pay Off Balance”?

• 48.5%

• 97.%

• 174.5%

• 20.5%

Tags

CCSS.8.SP.A.4

Of the 55 tornado fatalities in a recent year, the locations of

the victims are listed below. Find the relative frequency of each location. Round to two decimal places.

• $3.7,\ 1.0,\ 0.04,\ 0.02,\ 0.02$

• $0.67,\ 0.18,\ 0.07,\ 0.04,\ 0.04$

• $0.70,\ 0.15,\ 0.07,\ 0.04,\ 0.04$

• $0.37,\ 0.10,\ 0.04,\ 0.02,\ 0.02$

Tags

CCSS.7.SP.A.2

Display the data below in a stem-and-leaf plot.

• 
• 
• 

A sample of candies have weights that vary from 2.35 grams to 4.75 grams. Use this information to find the upper and lower limits of the first class if you wish to construct a frequency distribution with 12 classes.

• $2.35\ -\ 2.55$

• $2.35\ -\ 2.54$

• $2.35\ -\ 2.65$

• $2.35\ -\ 2.75$

Use the given frequency distribution above to find the cumulative frequency of each class.

• $41,\ 79,\ 126,\ 158,\ 176$

• $18,\ 23,\ 38,\ 47,\ 32\$

• $18,\ 41,\ 79,\ 126,\ 158$

• $18,\ 23,\ 32,\ 41,\ 79$

Tags

CCSS.8.SP.A.4

Use the ogive above to approximate the cumulative frequency

for 24 hours.

• 80

• 40

• 10

• 70

Use the maximum and minimum data entries and the 
number of classes to find the class width

min = 1, max = 30, 6 classes

•  $4$  

•  $5$  

•  $6$  

•  $3$  

Use the maximum and minimum data entries and the 
number of classes to find the lower limits.

min = 5, max = 100,  8 classes

•  $5,\ 17,\ 29,\ 41,\ 53,\ 65,\ 77,\ 89$  

•  $5,\ 16,\ 28,\ 40,\ 52,\ 64,\ 76,\ 88$  

•  $17,\ 29,\ 41,\ 53,\ 65,\ 77,\ 89,\ 101$  

•  $5,\ 16,\ 27,\ 38,\ 49,\ 60,\ 71,\ 82$  

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

Use the given frequency distribution to find the class midpoints.

•  $102,\ 108,\ 114,\ 120,\ 126$  

•  $52,\ 55,\ 58,\ 61,\ 64$  

•  $51,\ 54,\ 57,\ 60,\ 61$  

•  $52.5,\ 55.5,\ 58.5,\ 61.5,\ 64.5$  

Use the relative frequency histogram to identify the class with the greatest, and the class with the 
least, relative frequency. 

•  $least\ =\ 150\ and\ \ greatest\ =110$  

•  $least\ =\ 110\ and\ greatest\ =\ 150$  

•  $greatest\ =\ 150\ and\ least\ =100$  

•  $greatest\ =\ 150\ and\ least\ =\ 110$  

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1