PROBABILITY

There are 4 blue marbles, 5 red marbles, 1 green marble and 2 black marbles in a box. Suppose you select one marble at random. What is the probability that the marble chosen is blue? 

•  $\frac{1}{2}$  

•  $\frac{1}{3}$  

•  $\frac{2}{3}$  

•  $\frac{1}{4}$  

There are 4 blue marbles, 5 red marbles, 1 green marble and 2 black marbles in a box. Suppose you select one marble at random. What is the probability that the marble chosen is red? 

•  $41.67\%$  

•  $50\ \%$ 

•  $8.33\%$  

•  $33.33\%$  

There are 4 blue marbles, 5 red marbles, 1 green marble and 2 black marbles in a box. Suppose you select one marble at random. What is the probability that the marble chosen is green? 

•  $41.67\%$  

•  $16.67\ \%$ 

•  $8.33\%$  

•  $33.33\%$  

There are 4 blue marbles, 5 red marbles, 1 green marble and 2 black marbles in a box. Suppose you select one marble at random. What is the probability that the marble chosen is black? 

•  $\frac{1}{2}$  

•  $\frac{1}{3}$  

•  $\frac{3}{4}$  

•  $\frac{1}{6}$  

There are 4 blue marbles, 5 red marbles, 1 green marble and 2 black marbles in a box. Suppose you select one marble at random. What is the probability that the marble chosen is not green? 

•  $41.67\%$  

•  $91.67\%$  

•  $75\%$  

•  $8.33\%$  

Sam rolled a number cube 50 times. A '3' appeared 10 times. Find the probability of getting '3'.

•  $\frac{10}{50}$  

•  $\frac{20}{50}$  

•  $\frac{40}{50}$  

•  $\frac{30}{50}$  

Sam rolled a number cube 50 times. A '3' appeared 10 times. Find the probability of getting numbers that are not '3'.

•  $\frac{10}{50}$  

•  $\frac{20}{50}$  

•  $\frac{40}{50}$  

•  $\frac{30}{50}$  

A coin is tossed 60 times. 27 times head appeared. Find the probability of getting heads.

•  $55\%$  

•  $45\%$  

•  $0\%$  

•  $48\%$  

A coin is tossed 60 times. 27 times head appeared. Find the probability of getting tail.

•  $55\%$  

•  $45\%$  

•  $0\%$  

•  $48\%$  

Christian Dayne drew a random set of cards from a well -shuffled deck of 52 playing cards. He recorded the suit of cards that he picked; results are shown in the table. Find the probability of selecting a spade?

•  $\frac{13}{32}$  

•  $\frac{8}{32}$  

•  $\frac{4}{32}$  

•  $\frac{7}{32}$