Intro to Probability Practice

Last updated over 3 years ago
20 questions
1

Probability can be written as ...

1

Kerry is picking marbles out of a bag. Out of which bag would it be impossible to choose a white marble?

1

Correctly match each percentage to each term.

Draggable itemCorresponding Item
100%
Unlikely
85%
Equally likely as not likely
0%
Likely
20%
Impossible
50%
Certain
1

I have 4 yellow marbles and 8 blue marbles in a bag. What is the probability that I will pick a blue?

1

Kevin has 5 coins in his pocket. A dime, 2 pennies, a quarter, and a nickel. If Kevin randomly picks one coin out of his pocket. What would the probability he pick the penny? Select all APPLY

1

A person has 40 songs downloaded to their smartphone and has the phone set to a random shuffle. The classification of the 40 songs could be described as: 5 Country songs, 10 Classical pieces, 15 Hip Hop, 5 Rap, and 5 Pop Songs.

What is the probability that the next song played is Classical music?

1

Based on the teacher’s opinion, she thinks there is about a 75% chance that all of the students will pass the State Department’s End of Course Test.

1

Jessica doesn’t have any idea of what the answer is on one of her multiple-choice questions like this problem. The problem has 4 possible choices. After she guesses the answer, she realized that she has a 25% chance of getting that question correct. What type of probability did she use?

1

What is the probability of a complement of A? Remember to simplify your answer.

1

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue? (Make sure you simplify your answer)

1

The chart below represents the number of marbles in a jar. What is the probability of picking green?
(make sure to simplify your answer)

P(green) =

1

A bag has 3 red marbles, 2 blue, 4 greens and  1 yellow. What is the theoretical probability of pulling a red?

1

What is the probability of the spinner landing on red?

P(RED) =

1

What is the approximate Probability of drawing a Red Face Card from a standard deck of shuffled cards?

P( RED FACE CARD) =

1

What is the approximate Probability of drawing a QUEEN (Q) from a standard deck of shuffled cards?

P( QUEEN) =

1

What is the probability of rolling a single dice to a number greater than 4?
P(>4) =

1

If P(A) = 0.54, what is the P(A)' = .... ?

1

If P(B) = 0.32, what is P(B)' = ....?

1

The probability of raining today is 30%.  What is the probability that it will NOT rain today?

1

What is the "complement" of event of spinning the spinner to land on a prime number?
(hint: prime # is 2,3,5,7,11,13.... Even # are divisible by 2)