WorksheetsOUR Integrated Math 1 Unit 9 Test Review
Total questions: 50
Worksheet time: 54mins
Which graph represents histogram?
Where might there be an outlier?
95-100
90-105
85-90
80-85
Which calculation is possible with this information?
Mean
Median
Mode
None of these
What was the exact price most people paid for a gallon of gas?
$2.10
$1.95
$2.03
We cannot tell using the histogram
How many cities have temperatures between 70 degrees and 99 degrees?
33
44
20
62
What is the range in gas mileage for SUVs?
2
3
4
6
What is the median gas mileage for SUVs?
19
20
21
Are these dot plots symmetric?
Yes
No
What is the mode?
88%
89%
97%
91%
Which statement correctly describes the shapes of the dot plots for cars and SUVs?
SUVs: symmetrical
Cars: skewed left
Both are skewed left
Both are symmetrical
SUVs: skewed right
Cars: skewed left
What is true about the data in this bar graph?
In this perfectly symmetrical distribution, the mean, median, and mode are the same.
The mean, median, and mode are different.
There are several outliers in the set of data that makes this bar graph.
The data is unevenly distributed - therefore, the mean, median, and mode are all over the place.
Which of the following best describes the process of finding the interquartile range for a set of data?
Add the biggest and smallest numbers.
Place the numbers in order from least to greatest and find the middle.
Find the difference between the maximum and the minimum.
Subtract Q1 from Q3.
What percentage of the data is between 90 and 140?
25%
50%
75%
100%
The median test score is 80.
The lower quartile is 65.
The upper quartile is 90.
The IQR is 30.
The scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Use the trend line to predict how many chapters would be in a book with 180 pages.
12 chapters
15 chapters
18 chapters
21 chapters
The number of siblings you have and your weight shows...
Positive correlation.
Negative correlation.
No correlation.
All of the above.
What is the correlation?
Negative correlation
No correlation
Positive correlation
All of the above
In a scatterplot, an outlier...
...is something we didn't learn in 8th grade
...is a puppet with a long nose named Pinocchio
...is a point that is far outside the main cluster of points/ordered pairs
...is a really naughty point who doesn't tell the truth when outside
A restaurant sells pizza for the prices in the data table. Calculate the linear regression equation of the data.
y = 1.5x + 12
y = 12x + 1.5
y = 0.67x - 8
y = -8x + 0.67
What is the correlation between length of running start and distance of jump?
positive: the further you run the further you jump
negative: the less you run the less distance of your jump
positive: the further your running start the less your distance
The annual profits for a company are given in the following table, where x represents the number of years since 1992, and y represents the profit in thousands of dollars.
Write the linear regression equation that represents this set of data. Using this equation, estimate the year in which the profits would reach 378 thousand dollars.
2029
2014
2003
8753
The number of newly reported crime cases in a county in New York State is shown in the accompanying table, where x represents the number of years since 1994, and y represents the number of new cases.
Write the linear regression equation that represents this set of data. Using this equation, find the projected number of new cases for 2003, rounded to the nearest whole number.
974
25,101
940
952
If the number of steps taken per day and number of kilometers walked per day has a correlation coefficient of r = 0.92, this means the correlation relationship is...
strong positive
strong negative
weak positive
weak negative
If the temperature of a rubber band and the distance the rubber band can stretch have a correlation coefficient of r = 0.84, this means the correlation relationship is...
strong positive
strong negative
weak positive
weak negative
If the car weight and distance traveled using a full tank of gas has a correlation coefficient of r = -0.86, this means the correlation relationship is...
strong positive
strong negative
weak positive
weak negative
If the score on a science exam and the number of words written on the essay question have a correlation coefficient of r = 0.28, this means the correlation relationship is...
strong positive
strong negative
weak positive
weak negative
If the average time spent listening to music per day and average time spent watching TV per day has a correlation coefficient of r = -0.17, then the correlation relationship is...
strong positive
strong negative
weak positive
weak negative
Estimate the correlation coefficient for this scatterplot.
r = 1.27
r = 0.89
r = 0.32
r = -0.84
Estimate the correlation coefficient for this scatterplot.
r = -0.92
r = 1
r = 0.93
r = -1
The scatter plot shows the number of coffee shops in different cities and the number of violent crimes. Which of the following is NOT true?
As the number of coffee shops increases, violent crimes appear to increase.
The line of best fit (regression line) shows a positive correlation.
The data has a positive correlation coefficient.
An increase in coffee shops causes an increase in violent crimes.
Shown is a residual plot. How many positive residuals are there?
5
1
3
9
Shown is a residual plot. How many negative residuals are there?
5
1
3
9
According to the table, what is the relative frequency of students aged 10 - 13 who eat breakfast?
About 33%
About 50%
About 40%
About 44%
What is the relative frequency for selecting a teen given that the person likes chocolate?
11.2%
26.7%
16.4%
5.6%
What percentage of SUVs are driven by women?
56.25%
75%
83.25%
86.5%
