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3.4 Exercise 7

Avg difficulty 2.5

the table shows a random sample of 200 cyclists and the routes they prefer. Let M = males and H = hilly path.

Gender Lake Path Hilly Path Wooded Path Total
Female 45 38 27 110
Male 26 52 12 90
Total 71 90 39 200

  1. Out of the males, what is the probability that the cyclist prefers a hilly path?
  2. Are the events being male and preferring the hilly path independent events?

OpenStax Statistics, 3.4 Contingency Tables, exercise 7

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