Question Type 1: Constructing Venn diagrams to calculate probabilities for 2 events
Question Type 1: Constructing Venn diagrams to calculate probabilities for 2 events Bootcamps
Question 1
Skill question
In a survey of 100 students, 40 play football, 30 play basketball, and 10 play both. Construct the Venn diagram counts and find how many students play neither sport.
Question 2
Skill question
Among 120 people, 70 like tea, 50 like coffee, and 20 like both. Construct the Venn counts and find the probability that a randomly chosen person likes at least one beverage.
Question 3
Skill question
Given P(A)=0.7, P(B)=0.4, and P(neither A nor B)=0.1, find P(A∩B).
Question 4
Skill question
Out of 90 applicants, 60 passed exam A, 45 passed exam B, and 20 passed both. Find the probability that an applicant passed exactly one exam.
Question 5
Skill question
Given P(A∩B)=0.2, P(neither A nor B)=0.1, and P(A)=0.6, determine P(B).
Question 6
Skill question
If P(A∪B)=0.8, P(A∩B)=0.25, and P(A)=0.5, find P(B).
Question 7
Skill question
Given P(A∪B)=0.75, P(A)=0.45, and P(B)=0.60, calculate P(A∩B).
Question 8
Skill question
Given events A and B with P(A)=0.6, P(B)=0.5, and P(A∩B)=0.3, find P(neither A nor B).
Question 9
Skill question
In a standard 52-card deck, let A be drawing a red card and B be drawing a face card. Compute P(A∪B) and P(A∩B).
Question 10
Skill question
Events A and B satisfy P(A)=0.55, P(B)=0.65, and P(exactly one of A,B)=0.50. Calculate P(A∩B).