Question 6.425

3. Gestational Diabetes. Gestational diabetes occurs in 8% of pregnancies, according to the American Diabetes Association. A random sample of 20 pregnancies is taken.

  1. Find the probability that none of the pregnancies results in gestational diabetes.
  2. Find the probability that at least one of the pregnancies results in gestational diabetes.
  3. Find the probability that at most two of the pregnancies result in gestational diabetes.

6.99.3

(a) 0.1887 (b) 0.8113 (c) 0.7880