prob
Some questions (c) 2014 by Region 10 Educational Service Center.
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1
Marlon rolls a fair number cube with faces 1 to 6 and spins a spinner. What is the probability of rolling a 3 and spinning a green?
A
B
C
2
Suppose 10 tosses of a coin were all
3
Let's say we have a box with 6
heads, and you switch to a new coin.
marbles: 3 red, 1 blue, 1 green, and 1
What is the probability of tossing this
yellow. What is the probability of
new coin and getting another head?
picking a yellow marble, returning it to
F
the box, and then picking a blue
1/2
G 1/11
H 1/2048
J
1/1024
marble?
A
1/12
B
1/30
C
1/36
D 1/11
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4
Susan and Ellen are playing a game using the spinners below.
One player spins both spinners at the same time. The player who guesses the correct
sum before spinning the dials wins.
A. In the space below, list all the possible results.
B. What is the probability that an even sum will occur?
C. What is the probability of getting a sum of 4?
D. Which sum has the highest probabiliy of occuring?
5
If "face cards," in a regular deck of 52
cards are: Jacks, Queens, and Kings.
What is the probability of drawing 2
face cards in a row, if the first card is
shuffled back into the deck?
A
(3/13)(3/13)
B
3/13
C
(3/13) + (3/13)
D 1-(3/13)
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6
A spinner consists of five regions as shown
below:
If every region is equal, what is the probability that when you spin the arrow, it
will land on an odd number?
F
.3
G .5
H .6
J
7
.8
If a dice is rolled 18 times, how many
8
Mrs. Smith is about to give birth to
times is the number 2 expected to
her second child. Her first child is a
come up?
girl; what's the probability that after
A
2 times
this child is born, Mrs. Smith will have
B
3 times
C
6 times
D 9 times
one boy and one girl?
F
1/4
G 1/3
H 2/3
J
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9
Suppose 10 tosses of a coin were all
heads, and you switch to a new coin.
What is the probability of tossing this
new coin and getting another head?
A
1/2
B
1/11
C
1/2048
D 1/1024
10
A box contains 5 chocolate chip
cookies, 4 sugar and 6 oatmeal
raisin. What is the probability of
picking a chocolate chip cookie?
F
1/9
G 1/3
H 2/21
J
2/3
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11
Pablo is playing a game. He draws a card from the ones below and spins the spinner.
What is the probability of drawing a green and getting a 5 on the spinner?
A
B
C
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12
Marlon rolls a fair number cube with faces 1 to 6 and spins a spinner. What is the probability of rolling a 3 and spinning a green?
F
G
H
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