Name:
Date:
1.
Math 9R
Spring Break HW
What are the numbers used in making a box-and-whisker plot?
a)
b)
c)
d)
e)
2.
minimum, Q1, mean, Q3, maximum
Q1, Q2, Q3
minimum, Q1, median, Q3, maximum
minimum, interquartile range, maximum
minimum, Q1, median, Q2, maximum
The durations of a random sample of 16 commercials are below (in seconds). Find the mean, median,
and mode of these durations.
30
55
12
8
26
35
7
18
14
42
35
15
20
30
30
10
a) Mean = 24.19, median = 30, mode = 23
b) Mean = 20.13, median 21, mode = 35
c) Mean = 24.19, median = 23, mode = 30
d) Mean = 20, median = 24.19, mode = 30
e) Mean = 30, median 20, mode = 22.13
3.
The histogram below shows the number of minutes needed by 45 students to finish playing a computer
game. Which of the following statements is correct?
a)
b)
c)
d)
4.
The distribution is skewed to the right.
The distribution is skewed to the left.
The distribution appears to be normal.
The distribution appears to be uniform.
The vertex of the parabola𝑦 = 𝑥 2 + 8𝑥 + 10 lies in Quadrant
a)
b)
c)
d)
I
II
III
IV
Math 9R, Spring Break HW
5.
From the box-and-whisker plot to the right,
select the correct five-number summary.
a)
b)
c)
d)
e)
6.
5.5, 5, 4, 2, 2.5
0.5, 2, 4.5, 5, 5.5
0.5, 2, 4, 5, 5, 5
0.5, 2, 4, 5, 5.5
0.5, 2, 4.5, 5, 5.5
The solutions of 𝑥 2 = 16𝑥 − 28 are
a)
b)
c)
d)
7.
-2 and -14
2 and 14
-4 and -7
4 and 7
The box-and-whisker plot below represents the ages of 12 people.
What percentage of these people are age 15 or older?
a)
b)
c)
d)
8.
25
35
75
85
Write the equation represented by the graph below.
p2
Math 9R, Spring Break HW
9.
Chad complained to his friend that he had five equations to solve for homework. Are all of the
homework problems equations? Justify your answer.
10.
If 𝑔(𝑥) = 3𝑥 2 − 2𝑥 − 5, what is the value of g(-1)?
11.
Given the parabola: 𝑦 = −2𝑥 2 − 8𝑥 + 3
12.

Find the equation for the axis of symmetry.

Find the vertex point.
Find all solutions: (𝑥 + 5)2 = 121
p3
Math 9R, Spring Break HW
13.
p4
The dot plots below show the results of a study on sleep.
Which statement is true of the data?
a)
The standard deviation of the control group is less than the standard deviation of the test group.
b) The standard deviation of the control group and the test group are the same.
c)
The center of the test group is best measured using the mean.
d) The center of the control group is best measured using the mean.
14.
The first term of a sequence is 81. If the common ratio is
1
, what is the fifth term?
3