WGU C955 Probability and Statistics Objective Assessment Final Exam 2025
What is the probability of someone hav-
ing a birthday in March or December?
a 1/6 1/6
b 1/4
c 1/3
d 1/2
The table below shows the breakdown of
workers at a business. What is the proba-
bility of selecting a worker who is over 45
years of age to the nearest hundredth?
Age
18 25 26 44 45+Total
0.29
Male 75 200 125 400
Female 50 225 100 375
Total 125 425 225 775
a 0.16
b 0.29
c 0.42
d 0.55
The table below shows the breakdown of
workers at a business. What is the proba-
bility that a randomly selected 18 25 year
old is male (to the nearest hundredth)?
Age
18 25 26 44 45+Total
0.60
Male 75 200 125 400
Female 50 225 100 375
Total 125 425 225 775
a 0.48
b 0.52
c 0.56
d 0.60
The probability that Jimmy attends
school on any given day is 0.98 .
The probability Jimmy misses a day of
, WGU C955 Probability and Statistics Objective Assessment Final Exam 2025
school, given that he missed the day be-
fore, is 0.5 . What is the probability that
Jimmy misses school on BOTH Tuesday
and Wednesday?
0.01
a 0.0004
b 0.01
c 0.02
d 0.04
The following table shows the percent-
age of events at an arena.
Basketball 26%
Hockey 19%
Concert 18%
Table Tennis 9%
Other 28%
45%
What is the disjoint probability of having
a basketball or hockey game at the are-
na?
a 27%
b 37%
c 45%
d 55
A game has a 10 -sided fair die. What is
the probability of rolling an even number
or a number less than 5 ?
7/10
a 1/10
b 3/10
c 7/10
d 9/10
A survey on favorite pizza topping was
given: 33% said cheese was their fa-
vorite topping, 25% said pepperoni, 15%
said sausage, and 27% said other. If
two people are picked at random and re-
, WGU C955 Probability and Statistics Objective Assessment Final Exam 2025
placed, what is the probability of picking
two people that like cheese? Round your
answer to a whole number.
11%
a 0%
b 11%
c 33%
d 66%
There was a marble drawn from a bag
in an experiment and placed back in the
bag repeatedly. A red marble appeared
45 times, a blue marble 70 times, a green
marble 63 times, and a black marble 22
times. What is the empirical probability of
0.35
the blue marble?
a 0.11
b 0.225
c 0.315
d 0.35
In a bag, there are 8 red marbles, 10 blue
marbles, 9 green marbles, and 5 black
marbles. Find the theoretical probability
of drawing a red marble out of the bag.
1/4
a 5/32
b 1/4
c 9/32
d 5/16
What is the sample size for choosing an
odd number between 1 and 75 , including
the numbers 1 and 75 ?
38
a 37
b 38
c 39
d 40
What is the probability of someone hav-
ing a birthday in March or December?
a 1/6 1/6
b 1/4
c 1/3
d 1/2
The table below shows the breakdown of
workers at a business. What is the proba-
bility of selecting a worker who is over 45
years of age to the nearest hundredth?
Age
18 25 26 44 45+Total
0.29
Male 75 200 125 400
Female 50 225 100 375
Total 125 425 225 775
a 0.16
b 0.29
c 0.42
d 0.55
The table below shows the breakdown of
workers at a business. What is the proba-
bility that a randomly selected 18 25 year
old is male (to the nearest hundredth)?
Age
18 25 26 44 45+Total
0.60
Male 75 200 125 400
Female 50 225 100 375
Total 125 425 225 775
a 0.48
b 0.52
c 0.56
d 0.60
The probability that Jimmy attends
school on any given day is 0.98 .
The probability Jimmy misses a day of
, WGU C955 Probability and Statistics Objective Assessment Final Exam 2025
school, given that he missed the day be-
fore, is 0.5 . What is the probability that
Jimmy misses school on BOTH Tuesday
and Wednesday?
0.01
a 0.0004
b 0.01
c 0.02
d 0.04
The following table shows the percent-
age of events at an arena.
Basketball 26%
Hockey 19%
Concert 18%
Table Tennis 9%
Other 28%
45%
What is the disjoint probability of having
a basketball or hockey game at the are-
na?
a 27%
b 37%
c 45%
d 55
A game has a 10 -sided fair die. What is
the probability of rolling an even number
or a number less than 5 ?
7/10
a 1/10
b 3/10
c 7/10
d 9/10
A survey on favorite pizza topping was
given: 33% said cheese was their fa-
vorite topping, 25% said pepperoni, 15%
said sausage, and 27% said other. If
two people are picked at random and re-
, WGU C955 Probability and Statistics Objective Assessment Final Exam 2025
placed, what is the probability of picking
two people that like cheese? Round your
answer to a whole number.
11%
a 0%
b 11%
c 33%
d 66%
There was a marble drawn from a bag
in an experiment and placed back in the
bag repeatedly. A red marble appeared
45 times, a blue marble 70 times, a green
marble 63 times, and a black marble 22
times. What is the empirical probability of
0.35
the blue marble?
a 0.11
b 0.225
c 0.315
d 0.35
In a bag, there are 8 red marbles, 10 blue
marbles, 9 green marbles, and 5 black
marbles. Find the theoretical probability
of drawing a red marble out of the bag.
1/4
a 5/32
b 1/4
c 9/32
d 5/16
What is the sample size for choosing an
odd number between 1 and 75 , including
the numbers 1 and 75 ?
38
a 37
b 38
c 39
d 40
