Statistics and Probability Discussion Questions

Statistics and Probability Discussion Questions
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Statistics and Probability Discussion Questions
The eye color of 200 students in a high school was observed and recorded in
the bar graph below.
Hazel Brown Blue Green Other E
Eye color
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MODELING 452.
> McGraw-Hill Education 500 ACT Math Questions
If a person in this sample were randomly selected, what is the probability
that this person has blue or green eyes?
A) 4 ( 5
(B)
10
»} estid
1 O) =
11 (E) ai
How many additional hazel-eyed students must be added to the
population so that there would be a 4 probability of selecting a hazel-eyed
student from the new population in a random drawing?
(A) 24
(B) 48
{Jara
(D452
(E) 212
Statistics and Probability Discussion Questions
. The names of all the students who do not have brown eyes were entered
into a random drawing. What’s the probability that a student with hazel
eyes will be chosen in the drawing?
(A)
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Statistics and Probability
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Statistics and Probability Discussion Questions
. Sixty percent of the 250-member junior class at Central High School took
the ACT. Half of that test-taking group chose to take the essay portion.
How many Central High School juniors took the essay portion of the
AGi:
(A) 25
(B) 30
(C) 50
(D) 75 (E) 150
456. A student has 5 different shirts, 3 different pairs of pants, and 2 different
pairs of shoes in his closet. Without concern for fashion faux pas, how
many different outfit combinations (one shirt, one pair of pants, and one
pair of shoes) are possible?
(A) 10
(B) 15
(C) 20
150 ) McGraw-Hill Education 500 ACT Math Questions
Statistics and Probability Discussion Questions
@peine) 457. ‘Two classes took the math final exam. The first class had 20 students and
averaged 82%. The second class had 26 students and averaged and 86%.
What is the exam average of both classes combined?
(A) 83.9
(B) 84.0
(C) 84.1
(D) 84.3
(E) 84.5
458. A game’s card set is made up of 6 blue cards and 9 red cards. If a player
randomly selects one of these cards, what is the probability the selected
card will be blue?
(A) “
®) <
jl © <
. (D) 5
w (E) A
459. In a geometric series, the ratio of any term to the following term is
constant. What is the next term in the series 2, 3, —,…?
.