A barbershop requires appointments for perms and hair cuts. Ten ...

[WWatsford]

A barbershop requires appointments for perms and hair cuts. Ten percent of those making appointments cancel or simply fail to show up. Next week's appointment calendar has 64 appointments. Let x be the number of missed appointments out of the 64 . The probability that more than 3 cancellations and/or no-shows will occur during the next week is:
 a. 0.3784
  b. 0.8937
  c. 0.7795
  d. 0.9611
  e. 0.1063

Question 2

Approximately 14 percent of the population of Arizona is 65 years or older. A random sample of five persons from this population is taken. The probability that less than 2 of the 5 are 65 years or older is:
 a. 0.8533
  b. 0.1467
  c. 0.4704
  d. 0.3829
  e. None of these.

[jasonq]

Answer to Question 1

B

Answer to Question 2

A

[WWatsford]

Gracias!

[parshano]

Excellent