Probability and data test
1. What is the probability of choosing a red marble?
6 blue marbles
4 red marbles
2 green marbles
2. What is the probability 
of choosing a green or blue marble?
6 blue marbles
4 red marbles
2 green marbles
3. What is the probability of NOT choosing a blue marble?
6 blue marbles
4 red marbles
2 green marbles
4. You toss two dimes 20 times and record the results. Use the table to find the experiemental probability of tossing two tails.
head    head        5

head and tail     11

tail and tail         4
outcome
frequency
5. You toss two dimes 20 times and record the results. Use the table to find the experiemental probability of tossing one head and one tail.
head    head        5

head and tail     11

tail and tail         4
outcome
frequency
6. You toss two dimes 20 times and record the results. Use the table to find the experiemental probability of NOT tossing two heads.
head    head        5

head and tail     11

tail and tail         4
outcome
frequency
7. You toss two dimes 20 times and record the results. Use the table to find the experiemental probability of tossing all heads or all tails.
head    head        5

head and tail     11

tail and tail         4
outcome
frequency
8a. A factory produces 90 pairs of jeans. An inspector 
checks 9 and finds 1 defective.
What is the experimental probability that a pair ofjeans will be defective?
8b. A factory produces 90 pairs of jeans. An inspector checks 9 and finds 1 defective.
How many of the 90 pairs of jeans would youpredict to be defective?
9. How many outcomes are possible from 3 different
styles and 4 different sizes of shirt?
10. How many different outcomes are possible from 
3 locations and 6 activites of sports?
11. You roll a number cube twice. What is the 
probability of rolling a 6 then an odd number?
12. You roll a number cube twice. What is the probability of rolling a 2 then a 2?
13. You roll a number cube twice. What is the probability of rolling a number greater than 6 then a number less than2?
14. The cooler contains 12 grape juice bottles and 18
cranberry juice bottles. You randomly choose two 
bottles. What is the probability that both are 
cranberry juice?
15. You flip a coin and you roll a number cube. 
What is the probability that you flip tails and roll a number
 less than 4? 
16. Which sample is better for making a prediction?
Sample A:   A random sample of 10 customers leaving a store

Sample B:   A random sample of 100 customers leaving a store

sample a
sample b
17. You want to know the number of students in your school that have a January birthday. You survey the students in your math class. Five students have a January birthday, and 30 do not. So, you conclude that about 10.6% of the students in your school have a January birthday. 
Determine whether the conclusion is valid. 
valid
invalid
17b. You want to know the number of students in your school that have a January birthday. You survey the students in your math class. Five students have a January birthday, and 30 do not. So, you conclude that about 10.6% of the students in your school have a January birthday. 
Valid or invalid. NOW EXPLAIN YOUR CHOICE FROM PREVIOUS ANSWER
18a. Which garden has the greater median?
garden A
garden B
they are equal
18b. Which garden has the greater range?
garden A
garden B
they are equal
19a.  The double box-and-whisker plot shows the numbers of correct answers on a test for each student in Room 212 and Room 214.Which room has the greater median test score?
room 212
room 214
they are equal
19b. Which room has the greater interquartile range 
of test scores?
room 212
room 214
they are equal
19c. Which room has the greater range of test scores?
room 212
room 214
they are equal
19d. Which room has more predictable test scores?
room 212
room 214
they are equal
Students who took this test also took :

Created with That Quiz — a math test site for students of all grade levels.