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WorksheetsUnit 6 Review
Total questions: 18
Worksheet time: 54mins
The box plot and table represent data on the number of points scored per game for two players, Player A and Player B, in their last 13 basketball games.
If you were the coach of a basketball team, which player would you want on your team and why?
Player A because the range and IQR indicate he is a more consistent player.
Player B because the range and IQR indicate he is a more consistent player.
Which statement is true?
Lahnston has less variability than Zoslow.
Zoslow has less variability than Lahnston.
Mrs. Collins made a scatterplot to show the relationship between the number of absences and a student’s final exam score.
What conclusion does the data support?
No one made a 100 on the final exam.
If a student has been absent more than 10 days, they can score a 70%.
The highest scores are between 0-2 absences.
If a student misses more than 8 absences, they can still pass the final exam.
Casey calculated a line of best fit between the amount of money spent and the amount of time people were in the mall as f(x) = 1.05x – 2.63 and correlation coefficient of r = 0.03 for her data set.
Which of the following statements BEST describes the relationship?
Strong, positive
Strong, negative
No correlation
The data below represents the amount of time of play and the number of points scored by one player in a recent basketball game. Which statement best summarizes the relationship between x and y?
The more time they practice, the more they play in the game.
The longer they play, the more points they score.
The longer they play, the fewer points they score.
Most people had no opinion about the new song.
More than half of the people who liked the song were 25-46 years old.
People who did not like the song were more likely to be older than age 46.
The people who had no opinion were most likely to be younger than 25 years old.
70% of the people who were younger than 25 either liked the new song or had no opinion.
Which equation BEST represents the line of best fit for the scatterplot?
y = x + 6
y = -x + 6
y = 3x + 6
y = -3x + 6
Which of the following projections is MOST accurate?
When the peak temperature is 40°C, 35 units of electricity are used on average.
When the peak temperature is 40°C, 72 units of electricity are used on average.
When the peak temperature is 40°C, 120 units of electricity are used on average.
What would be the line of best fit for this scatter plot?
x = 100
y = 100
The scatter plot below shows the lowest priced fares for flights from Baltimore to various destinations.
The equation for the line of best fit is y=91x+100 . Which of the following statements BEST interprets the slope of the line of best fit?
The fare increases $1 for every nine miles.
The fare increases $9 for every one mile.
Consider the data set below:
5, 2, 9, 10, 3, 7, 2, 1, 6, 9, 5, 2, 7
If the number 25 were included in the set, what does this outlier do to the data?
It increases the mode.
It increases the median.
It skews the data to the right.
It skews the data to the left.
It decreases the interquartile range.
A class collects data on the number of movie tickets purchased and the total cost of those tickets. The class plots the data on a scatter plot. Which statement BEST interprets their results?
There is correlation, but no causation.
There is causation, but no correlation.
There is both correlation and causation.
There is neither correlation nor causation.
The scatter plot below shows data regarding the number of years worked and the average hourly wage for a job.
The line of best fit for this data is y = 0.5x + 8.7. Use this equation to make a conjecture about the pay per hour if someone works for 10 years.
$12 per hour
$13.70 per hour
$14 per hour
$16 per hour
The line of best fit for this data is y = 0.5x + 8.7. What is the y-intercept in the line of best fit? What does the y-intercept represent in the scatter plot?
$0.50; it is the starting pay.
$8.70; it is the starting pay.
Shown are the final scores for Norm Duke in the past eight bowling tournaments.
299, 281, 285, 269, 280, 269, 286, 287
What is the mean absolute deviation of Norm Duke’s scores?
(a)
Based on Norm Duke's mean absolute deviation, who has been the more consistent bowler if Ryan Shafer has a mean absolute deviation of 7?
Norm Duke
Ryan Shafer
Both are consistent.
Neither are consistent.
The class president collected data on 150 randomly selected 17-year-olds at his school. He surveyed students on if they had a job and driver’s license. The results are shown. What percent of the students who have a job, do not have a driver’s license?
18.28%
23.66%
81.72%
91.23%
The class president concluded that there is a correlation between having a job and having a driver’s license. Do you agree with the class president?
Yes
No
