Name ________________________________________
Date __________________________________
Ryan surveyed 80 students about their
after school activities. He recorded his
results in the two way frequency table
below.
1) Create a two way relative frequency table for the data
using percents.
Activity
Gender
Activity
Math 8A Period ____
HW # ____ Relative Frequency
Sports
Clubs
Other
Total
Gender Sports Clubs Other Total
Girl
Girl
9
21
8
38
Boy
22
8
12
42
Total
31
29
20
80
Boy
Total
2) Find the relative frequency, expressed as a
percent, of surveyed students who have clubs as
their activity.
3) Is the relative frequency of surveyed girls that
have sports as their activity a joint relative
frequency or a marginal relative frequency?
Explain your answer.
4) Find the joint relative frequency of surveyed
students who are boys and have clubs as their
activity.
5) Find the marginal relative frequency for
surveyed students who have sports as their
activity.
6) Find the conditional relative frequency that a
surveyed student has clubs as their activity, given
that the student is a girl. Express your answer as
a decimal and a whole percent. SHOW HOW YOU
FOUND YOUR ANSWER.
7) Find the conditional relative frequency that a
surveyed student is a boy, given that the student
has an activity other than sports or clubs. Express
your answer as a decimal and a percent. SHOW
HOW YOU FOUND YOUR ANSWER.
over
8) Which of the following represents a linear
function?
a) f(x) = 3x
b) f(x) = x3
c) f(x) = 3x2
d) f(x) = x + 3
Which function is quadratic? ______
9) Consider the table below.
x
0
1
2
y
4
8
n
What value of n will make the table a
representation of an exponential function?
Explain your answer.
Which function is exponential? ______
Which can you not determine what type of
function it is?
________
10) Which graph best represents 2x – y < 10?
11) Referring to #10, pick a point in the
shaded region of the answer you chose.
______________
Check this point in the inequality!
2x – y < 10
12) Solve for x. Leave your answer in fraction
form. DO A CALCULATOR CHECK IN ORDER TO
CHECK YOUR ANSWER!
6 – 3(4x – 5) = 7
13) Which of the following number(s) are
irrational?
a)
c)
b)
24
d)
Irrational means _____________________________
__________________________________________________