Indep/Dep/
Odds
Probably Probability
Let's do an Experiment!
Chap 9 Mish Mosh
Theoretically Speaking
100
Three separate boxes each have one blue marble and one green marble. One marble is chosen from each box. What is the prob of choosing a blue marble, then a greeen marble, then a blue marble?
What is 1/2 x 1/2 x 1/2 = 0.125
100
Of the raw diamonds received by a diamond cutter, it is expected that about 1/8 of them are acceptable. How many are unacceptable?
What is 7/8 0.875 87.5%
100
The table shows the results of spinning a spinner 80 times. Estimate the probability of the spinner landing on blue. White = 32; Red = 17; Blue = 24; Black = 7
What is 24/80 = 0.3
100
License plates are being produced with a single letter followed by 3 digits. How many possible plates are available?
What is 26,000
100
What is the sample space for flipping a coin and rolling a number cube?
What is 1H, 1T, 2H, 2T, 3H, 3T, 4H, 4T, 5H, 5T, 6H, 6T
200
The letters in the word DEPENDENT are placed in a box. If 2 letters are chosen at random, what is the prob that they will both be consonants?
What is 6/9 x 5/8 = 30/72 = 5/12
200
What is the prob of drawing at least 3 blue marbles? 0 = 0.024; 1 = 0.238; 2 = 0.476; 3 = 0.238, 4 = 0.024
What is 0.262
200
Estimate the prob that a students favorite subject is math. (500 students were surveyed) Math = 140
What is 0.28 or 28%
200
Find the probability that a license plate with a single letter followed by 3 digits does not contain a 3.
What is 26 x 9 x 9 x 9 0.729
200
Roll a number cube P (rolling a number greater than 4)
What is 1/3
300
an experiment consists of tossing 2 fair coins, a dime and a quarter. Find the prob of heads on the dime and tails on the quarter.
What is 1/2 x 1/2 = 1/4
300
There are 4 teams in a school tournament. Team A has a 25% chance of winning, Team B has the same chance as Team D. Team C has half the chance of winning as Team B. Create a table of probabilities.
What is A = 0.25; B = 0.3; C = 0.15; D = 0.3
300
A spinner has 8 equal sections with 3 blue, 3 red, and 2 yellow. Find the probability of not yellow.
What is 3/4
300
How many possible outcomes are there? bagels: sesame, onion, plain spreads: plain, chive, veggie
What is 9
300
Roll a number cube P(rolling a prime #)
What is 1/2
400
In a raffle, 1000 tickets were sold and there were 25 winners. Estimate the odds in favor of winning this raffle.
What is 25:975 1:39
400
Two people are playing a game. One of them says, "Either I will win or you will. The sample space contains two outcomes, so we each have a probability of one-half". What is the error?
What is The probs must have a sum of 1, but they could be 0.6 and 0.4 or 0.3 and 0.7. They don't have to be equal.
400
The prob that Kara will win a game is 1/5. Kevin and Cheryl have half as much chance of winning as Kara does. Sherry and Jameel are both three times as likely to win the game as Kevin is. What are all the probabilities?
What is Kara = 1/5; Kevin/Cheryl = 1/10 and 1/10; Sherry and Jameel = 3/10 and 3/10
400
There are 8 hot air balloons in a race. In how many possible orders can all 8 hot air balloons finish the race?
What is 40,320 ways
400
Roll 2 number cubes P(rolling total greater than ten)
What is 1/12
500
The probability of winnning a door prize is 1/10. What are the odds against winning a door prize?
What is 9:1
500
List all of the possible events in the sample space with outcomes A, B, and C
What is A & B, A & C, B & C, and A, B, C
500
True or False Experimental probability is not more reliable with a greater number of trials.
What is False
500
A group of 12 people are forming a committee. How many different 4 person committees can be formed?
What is 12C4 = 495
500
Roll 2 number cubes P(rolling doubles)
What is 5/6
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