Question

In: Statistics and Probability

If a seed is planted, it has a 65% chance of growing into a healthy plant....

  1. If a seed is planted, it has a 65% chance of growing into a healthy plant. If 12 seeds are planted, what is the probability that exactly 4 don't grow?

  2. A manufacturing machine has a 6% defect rate. If 4 items are chosen at random, what is the probability that at least one will have a defect?

  3. About 3% of the population has a particular genetic mutation. 500 people are randomly selected.Find the mean for the number of people with the genetic mutation in such groups of 500.

  4. When taking a 13 question multiple choice test, where each question has 5 possible answers, it would be unusual to get Incorrect or more questions correct by guessing alone.

Solutions

Expert Solution

For the first 2 problems we use the concept of Binomial distribution

orchestra answered 1 year ago
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