# Probability Worksheets - Page 21

Probability Worksheets
• Page 21
201.
A die is rolled. Find the probability of rolling a 2 or 4.
 a. $\frac{1}{2}$ b. $\frac{1}{6}$ c. $\frac{1}{3}$ d. $\frac{2}{3}$

202.
What is the probability of selecting a head when a coin is tossed, if the probability of selecting a tail is $\frac{1}{2}$?
 a. 1 b. $\frac{1}{2}$ c. $\frac{1}{4}$ d. $\frac{2}{6}$

203.
What is the probability of not selecting a number 4 when a number cube is rolled, if the probability of selecting a number 4 is $\frac{1}{6}$?
 a. 1 b. $\frac{5}{6}$ c. $\frac{2}{6}$ d. $\frac{1}{6}$

204.
Which of the following are complementary events?
 a. getting a number that is a multiple of 2, or a number that is a multiple of 3, when a number cube is rolled b. getting a number greater than 2 or a number greater than 3, when a number cube is rolled c. picking a marble from a bag containing only red and yellow marbles d. picking a Jack or a Spade from a pack of playing cards

205.
Terry is choosing a marble from a bag containing 1 black marble, 1 brown marble, and 1 white marble. What is the probability that he will not choose a brown marble?
 a. $\frac{2}{3}$ b. $\frac{3}{2}$ c. $\frac{1}{3}$ d. 1

206.
Johnny rolled a number cube. What is the probability of NOT getting a 4?
 a. $\frac{1}{6}$ b. 1 c. $\frac{5}{6}$ d. $\frac{2}{6}$

207.
In a piggy bank, 12 out of 20 coins are nickels. A coin is drawn from the piggy bank and is not replaced. A second coin is then drawn. Which expression helps you to find the probability that both the coins are nickels?
 a. $\frac{12}{20}$ + $\frac{8}{12}$ b. $\frac{12}{20}$ × $\frac{11}{19}$ c. $\frac{12}{20}$ × $\frac{11}{12}$ d. $\frac{12}{20}$ × $\frac{12}{19}$

208.
Three coins are tossed. Find P(H, H, H).
 a. $\frac{1}{6}$ b. $\frac{1}{2}$ c. $\frac{1}{4}$ d. $\frac{1}{8}$

209.
Henry draws a card from a pack of cards and also throws a die. What is the probability of Henry drawing a king and getting a number less than 4?
 a. $\frac{25}{26}$ b. $\frac{5}{26}$ c. $\frac{1}{26}$ d. $\frac{3}{26}$