WorksheetsBivariate Data
Total questions: 15
Worksheet time: 30mins
Which Scatterplot shows a negative correlation and an outlier?
Which statement pertaining to the scatterplot is not correct?
There is a linear association between the variables.
The data points indicate a strong association.
There is a positive association between the variables.
As sleep time increases, the number of quiz errors decreases.
What is the best description of an outlier in a scatterplot?
An outlier is either the highest point or the lowest point.
The location of the outlier varies greatly from the overall patter
The sum of the coordinate of an outlier is great than the sum of the coordinates of any other point.
The different of the coordinate of an outlier is greater than the difference of the coordinates of any other point.
Eric works in a restaurant. Sometimes he clears tables The scatterplot shows how much he earned in tops by clearing tables on different days. Based on the scatterplot, which is the most likely amount Eric will be earning by clearing 6 tables?
$6
$10
$12
$14
The scatterplot shows how many hikers reached a mountaintop overlook on different days during the year. Which statement correctly describes the association between temperature and the number of hikers that reached the overlook?
The association is positive but not linear.
The association is negative but not linear.
The association is linear because it is negative.
The association is neither positive nor negative because it is not linear.
Which statement clearly describes the association between hot chocolate sales and ice cream sales?
There is a negative association because in general, as hot chocolate sales increase, ice cream sales decrease.
There is a negative association because in general, as hot chocolate sales increase, ice cream sales increase.
There is a positive association because in general, as hot chocolate sales increase, ice cream sales decrease.
There is a positive association because in general, as hot chocolate sales increase, ice cream sales increase.
A baseball coach would like to be able to predict the number of hits his players will get based on the number of times they bat. He graphs some data and determines the line of best fit. The equation of the line of best fit is y = 0.32x – 20.51, where x is the number of times at bat and y is the number of hits. How many hits should he expect from a player who bats 175 times? Round your answer to the nearest whole number.
35
38
76
77
What type of correlation is shown in the scatterplot?
Positive Correlation
Negative Correlation
No Correlation
Undefined Correlation
The data on the graph shows the percent of fatal accidents due to speeding and the ages of the drivers. The line of best fit for the data is shown. Use the line of best fit to predict the age of drivers with 15% fatal accidents due to speeding.
30 years
48 years
36 years
42 years
A medical student is conducting a study to track boys’ weights from age 5 to age 18. The student graphs some data and determines the line of best fit is y = 1.73x + 80.13. What does the slope mean in this situation?
The increase in the number of pounds a boy gains each year.
The decrease in the number of points a boy gains each year.
The increase in the number of years for each pound a boy gains.
The decrease in the number of years for each pound a boy gains.
Cody graphed the results of the minutes she exercised versus her heart rate. Which scatter plot shows the line of best fit?
A scientist tested a new anti-fungal spray for roses. He sprayed an infected rose bush each day and recorded the number of uninfected blossoms. The following scatterplot shows his results.
Based on a line of best fit for the scatterplot, how many uninfected blossoms would he expect to find on day 12?
4
6
8
10
People were asked to choose one of four activities they would prefer to do in hot weather. The table shows data about the responses. Which activity was chosen most by adults over 18 years old?
Sports
Movies
Reading
Walking
According to the frequency table below, what percent of the volleyball players on Monday afternoon were counselors?
10%
20%
25.7%
90%
On Saturday, Ari surveys 200 people at a music festival. She asks the people at a music festival. She asks the people if they are camping overnight and if they are attending the festival on Sunday. She makes the two- way table shown.
What percent of the Not Camping Overnight people are attending the Music festival on Sunday?
29%
41%
50%
57%
