A) Expected Value
The expected value of a card drawn from a pile of cards with numbers 2, 4, 4, 6, 9, 9.
What is 5.666667 or 17/3?
A cup has sticks numbered 1 through 13. What is the probability of an odd number?
What is 7/13?
A coin and a die are both rolled. What is the probability of flipping tails and an even number?
What is (1/2 * 1/2 =) 1/4?
How many ways can you choose 2 dishes out of 8?
P(8,2)=8 * 7 =
What is 56 ways?
What is experimental probability?
What is the outcome when an experiment is completed.
A bag contains marbles; 3 red, 2 green, 5 yellow, 8 black, 4 purple. The probability of drawing a yellow marble and then a black marble and is it independent or dependent
5/22 * 8/21 =
What is 20/231 and dependent?
In a casino, it costs 6 euros to throw a dice. If you roll a 3, you win 12 euros. If you roll an even number, you win 6 euros. With all other numbers, you win nothing. This is the amount you can expect to win or lose if you play this game.
What is you can expect to lose 1 euro (or win only 5 euros)?
A spinner has 6 equal sections, red, blue, yellow, green, orange, and pink. What is the probability that the spinner will land on yellow?
What is 1/6?
A bag contains the following marbles: 4 red, 2 green, 3 yellow, and 1 orange. What is the probability that a green then a red will be picked, if the marble is replaced for the second draw.
What is (2/10 * 4/10 =) 8/100 or 2/25?
How many different ways can 5 airplanes be arranged at 5 gates?
P(5,5) = 5*4*3*2*1 =
What is 120?
A boy tosses a coin and gets heads 7 times out of 20. Is this theoretical or experimental?
What is experimental?
Flipping a coin and if it is tails rolling a die for 4 or greater. The probability and whether it is independent or dependent.
1/2 * 1/2 =
What is 1/4 and dependent
A club sells 1000 tickets for a confined draw. There is one prize of 100 euros, five prizes of 50 euros, and ten prizes of 20 euros. This is the expected value of a prize.
What is 0.55 euros?
A spinner has 10 equal sections, 1,2,3,4,5,6,7,8,9, and 10. If the spinner is spun, what is the probabilty of spinning a number less than 7?
What is 6/10 or 3/5?
A drawer contains 4 white, 4 black, 2 yellow, and 5 polka-dot socks and Julie wants to find a pair of yellow socks to wear to school. What is the probability that she will choose a pair of yellow socks in her first two picks if she doesn't replace the sock she draws first.
What is (2/15 * 1/14 =) 2/210 = 1/105?
If eight runners are in a race, how many different ways is there for the runners to cross the finish line?
P(8,8) = 8*7*6*5*4*3*2*1=
What is 40,320?
The probability of drawing a face card from a standard deck of cards is 3/13. Is this theoretical or experimental probability?
What is theoretical?
flipping a coin followed by flipping another coin. The probability and independent or dependent.
1/2 * 1/2=
What is 1/4 and independent?
A card is drawn from a normal pack of 52 cards. If a king is drawn you win 50 euros. If a diamond is drawn you win 8 euros. If a Jack is drawn you lose 5 euros. If you draw any other card you neither win nor lose. If it costs 10 euro to play the game, this is the amount you can expect to win or lose.
What is winning 5.46 euros (so losing 4.54 euros)?
A drawer contains 20 socks: 8 blue, 4 green, 6 black, and 2 white. What is the probability of picking out a blue sock?
What is 8/20 or 2/5?
A blue number cube and an orange number cube are rolled. What is the P(3, then even)?
What is (1/6 * 1/2 =) 1/12?
(the colors are extraneous information)
If seven clarinet players are seated in a row, what is the probability that Lucy will be first and Drew will be second?
7 * 6 = 42 possible ways so the probability of Lucy being first and Drew being second
What is 1/42?
A heart is randomly chosen from a deck of cards 7 out of 12 times. What is the experimental probability?
What is 7/12?
selecting from 30 named sticks from a cup with replacement. Probability of selecting Sophia and then Varsha and is it independent or dependent.
1/30 * 1/30 = (with replacement!)
What is 1/900 and independent?
A player throws a die. If an odd number is rolled, he wins 100 times that number. If an even number is rolled, he loses 100 times that number. This is the amount of money he can expect to win.
What is -50 euros?
A class has 20 boys and 12 girls. What is the percent chance that the teacher will choose a girl to answer a question?
What is 12/32 = 37.5%?
A spinner with equal sections of red, blue, green, and purple is spun while a number cube is rolled. What is the P (not blue and not a 3)
What is (3/4 * 5/6 =) 15/24 or 5/8?
In how many ways can you choose 2 colors out of 14 different colors?
P(14,2)= 14 * 13 =
What is 182 different 2 color outcomes?
A heart is randomly chosen from a deck of cards 7 out of 12 times. What is the theoretical probability?
What is 1/4?
5 unique bunnies in a bag. The probability that a black bunny will escape once the white and the spotted one have escaped ...and is it independent or dependent.
1/5 * 1/4 * 1/3 =
What is 1/60 and dependent?