A random sample of 420 new Ford trucks showed that 105 requi

A random sample of 420 new Ford trucks showed that 105 required repairs within the first warranty year. What is the estimate for the probability that a new Ford truck will need repairs within the first warranty year? 1.105 2. 315 3. 0.25 4. 0.75

Solution

proportion = 105/420 = 0.25

Hence option is III option 0.25