PRECALCULUS PROBLEMS AND SOLUTIONS
(Part - 14)

Problem 1 :

Solve for n :

ⁿP₅ = 12 ⋅ ^{(n - 1)}P₅

Solution :

Problem 2 :

A)  ¹¹P₁₁

B)  ¹¹P₁₁ - 1

C)  ¹¹P₁₁ + 1

D)  none of these

Solution :

Problem 3 :

A shipment of 14 microwave oven contains six defective units. A vending company has ordered four of these units, and because each is identically packaged, the selection will be random.

(a)  What is the probability that all four units are good?

(b)  What is the probability that exactly two units are good?

(c)  What is the probability that at least two units are good?

Solution :

Problem 4 :

One card is selected at random from a standard deck of 52 playing cards. Use a formula to find the probability of the union of two the two events. 

The card is a face or a red card.

Solution :

Problem 5 :

Find the probability for the experiment of tossing a six-sided die twice.

The sum is even or prime.

Solution :

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