Prob Basics
The probability of rolling a number 3 or greater on a 6 sided die.
4/6 or 2/3
A pizza stand offers hand-tossed, pan, and thin-crust pizza. Each pizza can either have pepperoni or sausage. How many pizzas can be created?
6
The three requirements for a probability distribution are:
1) Each individual probability must be between 0-1
2) All probabilities must add to 1
and...
3) All outcomes must be listed
In a standard deck of cards, find the probability of drawing a 4 without replacement, then drawing a 7.
16/2652
The law of large numbers says as the number of trials increases, the experimental probability approaches what?
the theoretical probability
DAILY DOUBLE!!!!
The chess club must decide when to meet for a practice. The possible days are Tuesday, Wednesday, or Thursday. The possible times are 3, 4, or 5 p.m. How many days/times are possible?
9 days/times
A local fundraiser is selling 100 raffle tickets. The chances of winning the grand prize are 1/100 and the chances of winning any other prize is 1/10. What is the probability that you won't win anything?
89/100
In a standard deck of cards, find the probability of drawing a 4 without replacement, then drawing another 4.
12/2652
DAILY DOUBLE!!!!
A kicker makes a field goal 75% of the time from 35 yards. Which is more likely?
A) He makes 3 out of 4 field goals
B) He makes 30 out of 40 field goals
C) He makes 300 out of 400 field goals
C) He makes 300 out of 400 field goals
Find the probability of flipping heads exactly 2 times if a coin is flipped 3 times.
3/8
You pick a card from a deck. If you get a face card, you win $5. If you get an ace, you win $30. For any other card, you win nothing. Find the expected value.
$3.46
A bag contains 8 blue marbles, 7 green marbles, and 5 yellow marbles. What is the probability of picking a yellow marble then a blue one (without replacement)?
40/380
You flip a coin 12 times and get 2 tails. If you flip the coin 60 more times, how many total tails should you expect in total?
32
Find the probability of rolling a multiple of 3 on a 6-sided die and flipping heads twice in a row.
2/24 or 1/12
A coin is flipped 3 times. If you get tails once you get $5, tails twice you get $15, and tails on all three flips you get $40. What is the expected amount of money you will get?
$12.50
A jar contains 4 white chips, 5 purple chips, and 1 black chip. Chips are selected randomly one at a time, and are not replaced. Find the probability of selecting 3 chips that are all different colors.
20/720