Question

A recent survey showed that 102 adults out of a sample of 400 do not like cold weather. However, 115 of those studied said that they had interest in taking skiing lessons. Based on this sample, if an adult is chosen at random, what is the probability that he or she has no desire to take skiing lessons? Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.

Answer 1

Probability that he or she has no desire in skiing lessons is 57/80

Explanation:

Probability is given by number of possible outcomes ÷ number of total outcomes

Probability he or she has interest in skiing lessons is 115/400

Probability he or she has no interest in skiing lessons is 1 - (115/400) = 285/400 = 57/80