Measure of Center
What is the average of the numbers 2, 4, 6, and 8?
5
If you flip a coin twice, what is the probability of getting two heads?
1/4
What is the probability of rolling an even number on a six-sided die?
1/2
If 3 out of 10 students prefer pizza, how many out of 100 students would you expect to prefer pizza?
30
A box plot displays what five key statistics?
(Answer: Minimum, Q1, Median, Q3, Maximum)
Find the median of this data set: 3, 7, 2, 9, 5.
5
A bag contains 3 red, 4 blue, and 3 green marbles. If you pick a marble, replace it and grab another, what is the probability of picking two blue marbles?
4/25
A bag contains 5 red, 3 blue, and 2 green marbles. What is the probability of picking a blue marble?
3/10
A survey shows that 15 out of 50 people prefer dogs over cats. How many out of 200 people would you expect to prefer dogs?
60
A circle graph (pie chart) represents what kind of data?
(Answer: Percentages or fractions)
What is the mode of the following numbers: 6, 8, 10, 8, 7, 8, 9?
8
A number cube (die) is rolled twice. What is the probability of rolling a 6 both times?
1/36
There are 26 letters in the alphabet. If a letter is chosen at random, what is the probability it is a vowel (A, E, I, O, U)?
5/26
A factory produces 1,200 toys per day, and 5% are defective. How many defective toys would you expect per day?
60
A bar graph shows sales for four products: A (25), B (50), C (75), and D (100). What is the total number of sales?
250
A data set has a range of 20. If the smallest number is 15, what is the largest number?
35
A bag contains 3 red, 4 blue, and 3 green marbles. If you pick two marbles without replacement, what is the probability of picking two blue marbles?
2/15
If a spinner has four equal sections labeled A, B, C, and D, what is the probability of spinning an A or a C?
1/2
A basketball player makes 75% of her free throws. If she takes 40 shots, how many will she likely make?
30
A survey asked students about their favorite pets. The results are shown in a pie chart:
Dogs: 45%
Cats: 30%
Birds: 10%
The remaining students chose fish. What percentage of students prefer fish?
15
he mean of five numbers is 12. The sum of four of the numbers is 40. What is the missing number?
20
Two cards are drawn from a standard deck without replacement. What is the probability that both are aces?
1/221 or 12/2652
A class has 12 boys and 18 girls. A student is randomly selected. What is the probability of selecting a boy?
2/5
A school finds that 7 out of 25 students ride bikes to school. How many students would you expect to ride bikes in a school of 400 students?
112
n a school election, a pie chart shows the percentage of votes each candidate received:
Candidate A: 40%
Candidate B: 35%
Candidate C: ?%
If a total of 600 students voted, how many votes did Candidate C receive?
25% 150 Students