A bank's manager thinks that 7% of the new credit cardholders will default at some time in their life. If he expected that 10 new credit cardholders will default, what was the number of new cards that were mailed out? If needed, round your answer to the nearest integer.

A bag contains 14 red marbles and 2 blue marbles. Two marbles are selected randomly without replacement from the bag. What is the probability that the two marbles are of the same color? If needed, round your answer to two decimal places.

A company has 215 employees, of which 61 are supervisors, 74 are married, and 5% of the employees are supervisors and married. If an employee is randomly selected, what is the probability that the employee is married or a supervisor? If needed, round your answer to two decimal places.

It has been determined that 8% of drivers checked at a road stop do not wear seat belts. If an officer stops 15 drivers at random, calculate the probability that at least ten of the drivers checked wear seat belts. Round your answer to four decimal places.

Suppose that 12% of orders at a drive-thru window at a fast-food restaurant will not be filled correctly. Twenty orders are selected at random. What is the probability that fewer than 16 orders will be filled correctly? Round your answer to four decimal places

The probability that you correctly guess the passcode of my phone (A) is 0.6 while the probability that you correctly guess the passcode of my laptop (B) is 0.4. Find the probability that you will guess correctly both passcodes if A and B are mutually exclusive.

Suppose that 85% of orders at a drive-thru window at a fast-food restaurant will be filed correctly. Twenty orders are selected at random. Find the probability that 14 to 18, inclusive, orders will be filled correctly? Round your answer to four decimal places.

At a certain car dealership, 51% of cars sold are SUVs, 44% of cars sold are black and 17% of cars sold are black SUVs. One sold car is selected randomly. Given that the car is an SUV, what is the probability that it is black? If needed, round your answer to two decimal places.

At a certain car dealership, 56 % of cars sold are SUVs, 32 % of cars sold are black and 23 % of cars sold are black SUVs. One sold car is selected randomly. Find the probability that the car is either black or an SUV but not both.

A recent survey of 1000 ZU students revealed that 447 students take MTH212 courses, 571 take MTH213 courses and 344 take both courses. Suppose a ZU student is selected at random, what is the probability that he/she neither takes MTH212 nor MTH213? If needed, round your answer to two decimal places.

During a particular year, 60% of the common stocks listed on the New York Stock Exchange increased in market value. At the beginning of the year, a stock advisory service chose 15 stock issues as being especially recommended. If the 15 issues represent a random selection, what is the probability that more than 7 issues increased in market value? Round your answer to four decimal places.

A company has 333 employees, of which 62 are supervisors, 90 are married, and 5% of the employees are supervisors and married. If an employee is randomly selected, what is the probability that the employee is married given that he/she is a supervisor? If needed, round your answer to two decimal places.