Basic Probability
The probability of getting a 7 when drawing one card from a standard deck
What is 4/52?
One person is chosen at random. Find the probability the person does not use public transportation.
What is 185/266?
The number of different outcomes when flipping six coins
What is 64?
The probability a 5-card hand contains 5 red face cards
What is 6/2,598,960?
The expected value of the following game that costs $1 to play: Roll a die. If you roll an odd number, you win as many dollars as the number on the die. If you roll and even number, you lose.
What is $0.50?
The probability of rolling a single die and getting a number greater than 4
What is 2/6?
What is 192/266?
The number of 5-topping pizzas that are possible when 19 toppings are available.
What is 11,628?
The probability a 5-card hand contains exactly 2 aces
What is 103,776/2,598,960?
The number of license plates that can be made with three letters followed by 3 digits if repeats are not allowed
What is 11,232,000?
A single card is drawn from a deck. Determine P(queen | face card)
What is 4/12?
One person is chosen at random. Find the probability the person drives to work or lives in a rural area.
What is 123/266?
The mathematical expression for the number of 7-character passwords that can be made using only lowercase letters and digits
What is 367 ?
When drawing one card from a deck,
P(king | face card)
What is 1?
What is 3/81?
The number of ways 8 people can be seated in a row of 8 chairs if Bill wants to sit on an end and Georgia wants to sit next to Bill
What is 1440?
From a jar of 6 red, 5 blue, and 4 yellow marbles, the probability at least 3 marbles are yellow when drawing 4 marbles at random
What is 45/1365?
The expected value when buying a $30 raffle ticket if 1000 tickets are sold. First prize is $1000, second prize is $500, and third prize is $250.
What is -$28.25?
The probability a single card drawn from a deck is black or a king
What is 28/52?
One person is chosen at random.
Find P(urban | carpool).
What is 25/74?
The number of ways 4 math professors and 3 science professors can be selected to work at a STEM event from among a group of 12 math professors and 27 science professors
What is 1,447,875?
What is
(12C0 * 40C5 + 12C1 * 40C4 + 12C2 * 40C3) / 52C5
The probability of winning the lottery if you buy one ticket. The winning number is determined by drawing 6 white balls from among white balls numbered 1-75 and then drawing one red ball from among red balls numbered 1-26. Order does not matter.
What is 1/5,235,348,300?