Ruth, the owner of a mail-order business, estimates that the probability that a household receiving one of her catalogs will place an order with her is 0.3. How many catalogs must Ruth send out to ensure that the chance of obtaining at least one order is 55% or better?
A) 3
B) 5
C) 6
D) 4
E) 2

Question

Ruth, the owner of a mail-order business, estimates that the probability that a household receiving one of her catalogs will place an order with her is 0.3. How many catalogs must Ruth send out to ensure that the chance of obtaining at least one order is 55% or better? ​
A) 3
B) 5
C) 6
D) 4
E) 2

Quizplus · Accepted Answer

The Answer of Ruth, the owner of a mail-order business, estimates that the probability that a household receiving one of her catalogs will place an order with her is 0.3. How many catalogs must Ruth send out to ensure that the chance of obtaining at least one order is 55% or better? ​
A) 3
B) 5
C) 6
D) 4
E) 2

Ruth, the Owner of a Mail-Order Business, Estimates That the Probability