Probability 1
Probability 2
Measures of Central Tendency
Misc.
100
Rhianna runs a stable. 18 horses currently board at the stable, and 2 of them are white.
What is the probability that a randomly chosen horse will be white?
1/9
100
You roll a die and flip a coin. How many outcomes are possible?
12 Outcomes
100
What is the mean?
46, 42, 41, 37, 42, 39, 42, 39
41
100
How many times do we need to repeat an event to ensure that the expected probability is perfect.
Infinitely many times
200
A laundry basket contains 8 socks, of which 3 are yellow.
What is the probability that a randomly selected sock will not be yellow?
5/8
200
Kaylee is buying a new car. There are 4 different models to choose from, each with 4 exterior colors available. How many different cars can Kaylee order?
16 Different cars
200
What is the range?
–3, 0, 4, 5, 0, 0, 0, –5, 1, 4
10
200
Look at this set of 9 numbers:
10, 24, 40, 17, 78, 40, 58, 11, 97
increase?
decrease?
no change?
Decrease
300
All the runners in a charity race get free T-shirts. So far, 73 people have taken size small, and 73 people have taken other sizes. What is the experimental probability that the next runner to pick up his or her T-shirt wears a size small?
1/2
300
What is the probability of picking a green marble and flipping tails?
3/10
300
What is the mean?
0.7, 0.6, 0.3, 0.9, 0.5, 0.3, 0.2
0.5
300
Many bird species on the Pitcairn Islands are in decline. In order to estimate the population of a particular species of bird, scientists mark 23 birds by attaching very small computer chips to them. A few days later, the scientists catch 240 birds, 12 of which are marked with computer chips. To the nearest whole number, what is the best estimate for the bird population?
460 birds
400
Leslie used some of her allowance money to buy a stack of 300 baseball trading cards at a yard sale. She randomly looks at 24 cards and sees 8 outfielders, 7 pitchers, 4 catchers, and 5 infielders.
Based on the data, what is the probability that the next card Leslie looks at will be a pitcher?
7/24
400
What is the probability of rolling a three on the first die and a three on the second die?
Write your answer as a fraction
1/36
400
Julia has the following data:
22, 22, c, 28
If the mean is 25, which number must c be?
c = 28
400
In the data set below, what is the lower quartile and the upper quartile?
1, 1, 3, 3, 5, 5, 7, 8
Lower Quartile = 2
Upper Quartile = 6
500
Susan and her friends are playing the card game Critter Charades. They take turns drawing from a deck of 100 cards with animal pictures, looking at the animal on the card, and then acting out that animal. The other players try to guess the animal. Here are the types of animals that have been picked in today's game so far:
mammal, bird, bird, reptile, fish, mammal, bird, fish, reptile, fish, mammal, bird, fish
Based on the data, estimate how many reptile cards are in the whole deck.
15 reptile cards
500
What is the probability of picking a green marble and flipping tails?
1/22
500
Bob has the following data:
13, 16, 17, 11, x, 17, 12
If the median is 16, which number must x be?
Any number greater than or equal to 16
500
In the data set below, what is the mean absolute deviation?
6, 1, 7, 2, 5, 3
2