482 Probability and PredictionsPractice
Chapter Test
The spinner shown has an
equal chance of landing on
each number. Find each
probability.- P(odd number)
- P(1 or 7)
- P(not a prime number)
- P(number greater than 1)
- MULTIPLE CHOICE A cooler contains
8 grape-juice boxes, 12 orange-juice boxes,
and 4 apple-juice boxes. If a juice box is
selected at random, what is the probability
that it will be grape?
A. 50% C. 0.1
−
6
B. ^13 D. ^56 - LETTERS Use a tree diagram to find the
sample space if a letter is chosen from the
word GAME and then a digit from the
number 123. - CODES Use the Fundamental Counting
Principle to find the number of possible
4-digit security codes. - DOGS There are 40 dogs entered in a dog
show. In how many ways can a first place
and a second place ribbon be awarded? - MULTIPLE CHOICE Josh is choosing from
two prize bags that each contain 5 packs of
baseball cards, 11 packages of putty, and
9 hats. What is the probability that Josh
randomly picks a hat from the first bag
and a pack of baseball cards from the
second bag?
F. 259 H. ^1425
G. ^15 I. 1259
10. A spinner is spun 60 times. What is the
experimental probability that the spinner
lands on section C? Write as a percent.
Section of TimesNumber
A12
B17
C12
D 4
E15- SCHOOL Determine whether spinning a
spinner with four equal sections would be
a good way to answer a 4-choice multiple-
choice question. Justify your answer. - POPULATION The student council surveyed
100 students to learn whether they
approved of proposed dress code changes.
Use the graph to predict how many of the
school’s 380 students would be in favor of
the proposed change.
6OEFDJEFE
:FT
/P
Dress Code Survey- EXTENDED RESPONSE To determine the
favorite pet of most people, a random
survey is administered at a dog show. Of
those surveyed, 88% responded that dogs
are their favorite pet. It is concluded that
dogs are the favorite pet of most people. Is
this conclusion valid? Justify your answer.
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