WGU C955 - Module 7: Probability Exam
2025 With 100% Correct Answers
What is the probability of someone having a birthday in March or December?
a 1/6
b 1/4
c 1/3
d 1/2 - correct answers ✔✔1/6
The table below shows the breakdown of workers at a business. What is the probability of
selecting a worker who is over 45 years of age to the nearest hundredth?
Age
18−25 26−44 45+ Total
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 - correct answers ✔✔0.29
The table below shows the breakdown of workers at a business. What is the probability that a
randomly selected 18−25 year old is male (to the nearest hundredth)?
,Age
18−25 26−44 45+ Total
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 - correct answers ✔✔0.60
The probability that Jimmy attends school on any given day is 0.98 . The probability Jimmy
misses a day of school, given that he missed the day before, is 0.5 . What is the probability that
Jimmy misses school on BOTH Tuesday and Wednesday?
a 0.0004
b 0.01
c 0.02
d 0.04 - correct answers ✔✔0.01
The following table shows the percentage of events at an arena.
Basketball 26%
Hockey 19%
Concert 18%
Table Tennis 9%
Other 28%
, What is the disjoint probability of having a basketball or hockey game at the arena?
a 27%
b 37%
c 45%
d 55 - correct answers ✔✔45%
A game has a 10 -sided fair die. What is the probability of rolling an even number or a number
less than 5 ?
a 1/10
b 3/10
c 7/10
d 9/10 - correct answers ✔✔7/10
A survey on favorite pizza topping was given: 33% said cheese was their favorite topping, 25%
said pepperoni, 15% said sausage, and 27% said other. If two people are picked at random and
replaced, what is the probability of picking two people that like cheese? Round your answer to a
whole number.
a 0%
b 11%
c 33%
d 66% - correct answers ✔✔11%
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 the blue marble?
2025 With 100% Correct Answers
What is the probability of someone having a birthday in March or December?
a 1/6
b 1/4
c 1/3
d 1/2 - correct answers ✔✔1/6
The table below shows the breakdown of workers at a business. What is the probability of
selecting a worker who is over 45 years of age to the nearest hundredth?
Age
18−25 26−44 45+ Total
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 - correct answers ✔✔0.29
The table below shows the breakdown of workers at a business. What is the probability that a
randomly selected 18−25 year old is male (to the nearest hundredth)?
,Age
18−25 26−44 45+ Total
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 - correct answers ✔✔0.60
The probability that Jimmy attends school on any given day is 0.98 . The probability Jimmy
misses a day of school, given that he missed the day before, is 0.5 . What is the probability that
Jimmy misses school on BOTH Tuesday and Wednesday?
a 0.0004
b 0.01
c 0.02
d 0.04 - correct answers ✔✔0.01
The following table shows the percentage of events at an arena.
Basketball 26%
Hockey 19%
Concert 18%
Table Tennis 9%
Other 28%
, What is the disjoint probability of having a basketball or hockey game at the arena?
a 27%
b 37%
c 45%
d 55 - correct answers ✔✔45%
A game has a 10 -sided fair die. What is the probability of rolling an even number or a number
less than 5 ?
a 1/10
b 3/10
c 7/10
d 9/10 - correct answers ✔✔7/10
A survey on favorite pizza topping was given: 33% said cheese was their favorite topping, 25%
said pepperoni, 15% said sausage, and 27% said other. If two people are picked at random and
replaced, what is the probability of picking two people that like cheese? Round your answer to a
whole number.
a 0%
b 11%
c 33%
d 66% - correct answers ✔✔11%
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 the blue marble?
