NAME ____________________________________________ DATE _____________________________ PERIOD _____________
Practice 7.6(H)
SCORE __________
Solve problems using qualitative and quantitative predictions and comparisons from simple experiments.
Multi-Step Example
The table shows the number of bottles of nail polish in a bag. How many times would you expect to
select purple nail polish if you picked a bottle of nail polish from the bag 120 times and replaced it
each time? Explain.
Color of Nail Polish
Pink
Purple
Green
Red
Sparkles
Number of Bottles
7
9
1
3
7
The probability of picking a purple bottle is
!"#$%& !" !"#$%"&'( !"#$!%&'
!"!#$ !"#$%& !" !"#$!%&'
=
!
!"
!
or .
!
!
So, you can expect to pick a purple bottle of nail polish ! • 120 or 40 times.
1 Scarlett is making a card. She has a drawer with 3 red,
2 pink, 5 green, 1 white, and 4 purple pieces of paper.
How likely is it that Scarlett will randomly select a
pink piece of paper?
3 How many times would you expect the spinner to
NOT land on Red if the spinner is spun 40 times?
Justify your prediction.
A unlikely
B as likely to happen as not
C likely
D certain
2 Heather has a bag of 15 red, 11 orange, 9 yellow, 12
green, 6 blue and 11 purple markers. How many times
would you expect Heather to pick a red marker if she
picked a marker 90 times?
!
A 8 times; × 40 is 8.
!
!
B 16 times; × 40 is 16.
!
F about 11 times
!
C 24 times; × 40 is 24.
!
G about 15 times
!
D 32 times; × 40 is 32.
H about 21 times
!
J about 64 times
Course 2 • Proportionality TX73 NAME ____________________________________________ DATE _____________________________ PERIOD _____________
Practice 7.6(H) (continued)
SCORE __________
4 Tony has a workout playlist consisting of 4 songs for
stretching, 14 songs for running, and 6 songs for
lifting weights. If the playlist is shuffled, how likely is
it a randomly selected song will be a song for running?
F impossible
G as likely to happen as not
H likely
J certain
5 Justin is tossing a quarter to determine which team gets
the ball at the beginning of a football game. The Rams
get the ball if the quarter lands on heads and the Tigers
get the ball if the quarter lands on tails. How likely is
it that the Rams will have the ball at the beginning of
the game?
7 The table shows the number of different color balloons
set up for a dart game at a carnival. Which statement is
true?
Balloon Color
Number of Balloons
red
5
yellow
6
orange
5
green
4
blue
1
purple
4
F The probability of hitting a red balloon is as likely as
hitting a yellow balloon.
G The probability of hitting a blue balloon is greater
than hitting the other color balloons.
H The probability of hitting a yellow balloon is less
than hitting the other color balloons.
A unlikely
B as likely to happen as not
J The probability of hitting a green balloon is as likely
as hitting a purple balloon.
C likely
D certain
6 Sam is renting a car for vacation. The table shows the
number of keys in a bag for each type of car in the
parking lot. How many times would you expect Sam
to randomly select keys for a convertible or a sports
car if he selects a key 120 times?
8 Ava writes each letter of the alphabet on separate note
cards and puts the cards in a hat. How many times
would you expect Ava to pick a letter from her name if
she picks a card 50 times, returning the card to the hat
each time?
A about 2 times
B about 4 times
Type of Car
SUV
sedan
convertible
compact
sports
Number of Keys in Bag
7
16
2
12
3
Record your answer and fill in the bubbles on your
answer document. Be sure to use the correct place
value.
TX74 C about 13 times
D about 26 times
9 Elaina misses 2 free throws for every 10 attempts.
How many free throws can you expect Elaina to make
if she shoots 15 free throws in a game?
Record your answer and fill in the bubbles on your
answer document. Be sure to use the correct place
value.
Course 2 • Proportionality NAME ____________________________________________ DATE _____________________________ PERIOD _____________
Practice 7.6(H)
SCORE __________
Student Recording Sheet
Fill in the correct answer. For gridded-response questions, write your answers in the boxes on the answer grid and
fill in the bubbles to match your answers.
1
2
7
8
3
5
9
4
6
Course 2 • Proportionality
TX75