a group of students were surveyed to find out if they like building snowmen or skiing as a winter activity. The results of the survey are: 60 students like building snowmen; 10 students like building snowmen, but don't like skiing; 80 students like skiing; 5 students don't like building snowmen. Part B: What is the probability that a student who does not like building snowmen also does not like skiing?

Question

Mathematics

Mercedes Ferguson

20 January, 19:05

a group of students were surveyed to find out if they like building snowmen or skiing as a winter activity. The results of the survey are: 60 students like building snowmen; 10 students like building snowmen, but don't like skiing; 80 students like skiing; 5 students don't like building snowmen. Part B: What is the probability that a student who does not like building snowmen also does not like skiing?

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Answers (1)

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Blondie · Answer 1

2/5 or 0.4

Step-by-step explanation:

10 students like building snowmen but do not like skiing

so students who like both building snowman and skiing = 60 - 10 = 50

Total number of students who does not like building snowman and also does not like skiing = 80 - 60 = 20

Therefore, the probability that a student who does not like building snowmen also does not like skiing = 20/50 = 0.4