Unit 7 Accommodated Quiz

Question 1

A scatterplot shows a correlation between two sets of data. Which statement is true when a scatterplot is said to have a positive correlation?

• The two sets of data increase together.

• One data set increases while the other decreases.

• There is no obvious relationship between the data sets.

Question 2

Which graph best related the amount of time spent studying to the grade received on a test?

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• 
• 

Question 3

Which of the following data tables does this scatterplot represent?

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• 
• 

Question 4

What type of correlation is shown on the graph?

• no correlation

• positive correlation

• negative correlation

Question 5

What type of correlation is shown on the graph?

• weak negative association

• weak positive association

• strong positive association

Question 6

The figure is a scatterplot of ordered pairs relating the number of cetimeters of rain a city received and the percentage of sunshine. What type of correlation is shown by this data?

• strong positive

• strong negative

• weak negative

Question 7

The scatterplot shows the number of hours of study for 10 students and their scores on a state test. Which statement is not true, based on the data in the scatterplot?

• Students who scored a 100% studied for 7 hours.

• Students who scored the lowest did the least amount of studying.

• Students who study 2 hours get higher scores than students who study for 5 hours.

Question 8

Mitesh did an experiment in Physical Science class which resulted in the following data as graphed. What equation would best represent the data?

Question 9

Chris is hiking down a mountain. This scatterplot shows her elevation at the end of each hour of her hike.

Using this information, what is the best prediction of her elevation after hiking 10 hours?

• 0

• 200

• 400

Question 10

The graph shows the change in price per gallon of gasoline over the past 6 months. How much was gas during the 4th month?

• $1.50

• $2.15

• $2.45