Theoretical
Olivia spinning a spinner. The spinner has 4 equal sections labeled A-D. What is the probability the spinner will land on the letter "A"?
1/4 or 25%
Austin has a spinner with 5 equal sections, each a different color. After only 10 spins, the pointer had landed on red 4 times. How does the experimental probability of landing on red compare to the theoretical probability of landing on red?
40% (experimental) is much higher than 20% (theoretical)
You are trying to decide what to wear to school. You know you have a green pair of pants, a red pair, and a blue pair. You also have a brown shirt, a plaid shirt, and a yellow shirt. How many different outfit combinations can you make?
9
Of the pizzas recently sold at Broadway Pizza, 6 had pepperoni and 6 did not. Considering this data how many of the next 8 pizzas sold would you expect to have pepperoni?
4
A bag contains 4 white beads, 6 red beads, 5 yellow beads, and 5 blue beads. One bead is selected, kept, and another bead is selected. Find P(red, then red)
3/38
A bag of marbles has 3 red marbles, 5 black marbles, and 2 white marbles. What is the probability of pulling out a red marble?
3/10 or 30%
Mrs. Ives has a non-uniform spinner where red is 1/2 the spinner, blue is 1/4, and black is 1/4. After 500 spins, about how many times would you expect red to show up?
250 times
If you flip two coins 32 times, what is the best prediction possible for the number of times both coins will land on heads?
8
A bag contains 4 white beads, 6 red beads, 5 yellow beads, and 5 blue beads. One bead is selected, kept, and another bead is selected. Find P(blue, then yellow)
5/76
I have a pack of Starburst. There are 8 orange, 3 red, and 1 yellow. What is the probability that I pick a pink one? Impossible, unlikely, likely, or certain?
Impossible
A letter tile is randomly selected from a bag, recorded, and replaced 100 times. The results are listed below. What is the experimental probability of selecting the letter "E"? A = 16 E = 11 I = 29 O = 19 U = 25
11/100 or 0.11, or 11%
Boats from all along the Atlantic coast dock at a busy marina. Of the first boats to dock there one day, 16 of the boats were from Connecticut, while 26 were from other states. Considering this data, how many of the next 84 boats to dock should you expect to be from Connecticut?
32
A bowl contains 8 pennies, 7 nickels, and 10 dimes. Elyse removes one coin at random from the bowl and does not replace it. She then removes a second coin random. What is the probability that both will be nickels?
7/100
There are 7 red marbles, 2 green marbles, and 1 yellow marble in a box. What is the probability I pick a green or a red one?
9/10
Ryan recorded the types of birds that visit his bird feeder. Based on the results below, what is the probability the next bird will be a chickadee? Woodpecker = 3 Chickadee = 5 Cardinal = 1 Sparrow = 13 Blue Jay = 3
1/5, or 0.20, or 20%
A T-shirt stand on the boardwalk recently sold 4 gray shirts and 6 shirts in other colors. Considering this data, how many of the next 15 shirts sold would you expect to be gray?
6
There are 26 prize tickets in a bowl, labeled A to Z. What is the probability that a prize ticket with a vowel will be chosen, not replaced, and then another prize ticket with a vowel will be chosen? Does this represent an independent or dependent event? Explain.
2/65; dependent event - the second event is impacted by the first
Skylar spins a spinner with 5 equal sections numbered 1-5 and she spins another spinner with 5 equal sections with the letters A-E. What is the probability she will spin a 4 and a B?
1/25 or 0.04, or 4%
A deli owner records the following information about his customers: 48 ordered Turkey 25 ordered Vegetarian 27 ordered Ham If he sells 20 sandwiches today about how many of them will be Turkey?
About 10 (9.6 to be exact but you can't sell a piece of a sandwich!)
If you flip two coins 72 times, what is the best prediction possible for the number of times both coins will land on heads?
18
You have a shuffled deck of cards (no jokers), you pick three cards and do not replace them. What is the probability you pick three Aces in a row?
1/5525