Question

Suppose there is a deck where every card has both a single color and a single number. Suppose the colors are Red, Green, and Blue and the numbers are 1-20.

What is the probability that a randomly selected card will be Green 1?
What is the probability that a randomly selected card will be red?

Answer 1

A. P = 1.7% (rounding to the next tenth)

B. P = 33.3% (rounding to the next tenth)

Explanation:

1. Let's review the information given to us to answer the question correctly:

Number of red cards = 20

Number of blue cards = 20

Number of green cards = 20

Total number of cards = 60

2. A. What is the probability that a randomly selected card will be Green 1?

Let's recall that the formula of the probability is:

P = Number of favorable outcomes/Total number of possible outcomes

Replacing with the value we have:

P = 1/60 = 0.017

P = 1.7% (rounding to the next tenth)

B. What is the probability that a randomly selected card will be red?

P = Number of favorable outcomes/Total number of possible outcomes

Replacing with the value we have:

P = 20/60 = 0.333

P = 33.3% (rounding to the next tenth)