Answer:
0.05
Step-by-step explanation:
To solve this problem, we first need to calculate the percentage of people that like beach or mountain sports.
This percentage can be calculated with the formula:
P(M or B) = P(M) + P(B) - P(M and B)
where:
P(M or M) is the percentage of people that like beach or mountain sports,
P(B) is the percentage of people that like beach sports,
P(M) is the percentage of people that like mountain sports,
P(B) is the percentage of people that like beach and mountain sports.
Then:
P(M or B) = 0.55 + 0.60 - 0.20 = 0.95
95% of the people like mountain or beach sport. Now, to find the percentage of people that like neither, we just need to make 1 minus the percentage of people that like beach or mountain sports:
P(Neither) = 1 - P(M or B) = 1 - 0.95 = 0.05
0.05 or 5% of the people interviewed like neither of these sports.
