Probability of Independent and Mutually Exclusive Events
Authored by Ben Passmore
Mathematics
8th - 10th Grade
probability covered
Used 15+ times
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12 questions
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1.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Beth always eats one bowl of cereal for breakfast. The probability that she chooses porridge is 0.25. The probability that she chooses muesli is 0.08. What is the probability that she eats porridge or muesli?
(a)
Tags
probability
mutually exclusive events
2.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Alexey has some red, blue, yellow, and green pencils. The number of yellow pencils is the same as the number of green ones.
He chooses a pencil at random. The probability that he chooses a red pencil is 0.3, and 0.4 for blue. Find the probability that he chooses a green pencil.
(a)
Tags
probability
mutually exclusive events
3.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
The probability that Mr. Passmore goes shopping this afternoon is 0.2. The probability that Artem goes shopping this afternoon is 0.45. Calculate the probability that Mr. Passmore and Artem both go shopping (not together).
(a)
Tags
probability
independent events
4.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
The probability that Mr. Passmore goes shopping this afternoon is 0.2. The probability that Artem goes shopping this afternoon is 0.45. Calculate the probability that Mr. Passmore goes shopping and Artem doesn't go shopping.
(a)
Tags
probability
independent events
5.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
A four-sided spinner is spun twice. What is the probability that the total of the numbers will be 5?
(a)
Tags
probability
independent events
6.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Polina is playing ping-pong. The probability that she wins a game is 0.7 (she's quite good). What is the probability that she wins one game and wins the next game?
(a)
Tags
probability
independent events
7.
FILL IN THE BLANKS QUESTION
2 mins • 2 pts
Andrey has many different coloured socks. The probability that he wears a colour is:
Orange = 0.1
Blue = 0.6
Red = 0.2
Green = 0.1
What is the probability that he wears a red or orange sock one day, and a blue sock the next day?
(a)
Tags
probability
independent events
mutually exclusive events
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