Find the probability for 1 roll of a regular number cube. Write as a fraction in simplest form.
P(3,4, or 5)
1/2
You roll a number cube four times. How many outcomes are possible?
1,296
Kaiya and Iffy lead two teams that competed to collect canned food at their school. There were eight classrooms of students on Kaiya’s team and nine classrooms of students on Iffy’s team. The numbers below show how many cans each class collected for the competition.
Kaiya’s Team: 22, 25, 80, 55, 32, 68, 73, 45
Iffy’s Team: 15, 25, 50, 48, 39, 30, 42, 24, 42
Find Kaiya's mean, median, mode, five-number summary, range, IQR, and MAD.
mean: 50
median: 35
mode: no mode
five-number summary: 22~28.5~50~70.5~80
Range: 58
IQR: 42
MAD: 19
Mariah randomly polled 100 students. She asked who they planned to vote for as class president. The results are in the pie chart below.
a. Find P(Juan).
b. Find P(Maria).
c. Find P(Nigel).
d. There are 400 students voting. Predict how many students will vote for Maria.
a. 1/5
b. 1/2
c. 3/10
d. 200 students
A bag has 4 red marbles, 3 green marbles, 8 blue marbles, and 5 yellow marbles. Find the probability that Susan will randomly choose a red or blue marble.
P(red or blue)
3/5
Martin takes a test that has five multiple-choice questions. Each question has three possible answers. If Martin guesses on each question, in how many different ways can he answer the questions on the test?
243
Kaiya and Iffy lead two teams that competed to collect canned food at their school. There were eight classrooms of students on Kaiya’s team and nine classrooms of students on Iffy’s team. The numbers below show how many cans each class collected for the competition.
Kaiya’s Team: 22, 25, 80, 55, 32, 68, 73, 45
Iffy’s Team: 15, 25, 50, 48, 39, 30, 42, 24, 42
Find Iffy's mean, median, mode, five number summary, range, IQR, and MAD.
mean: 35
median: 39
mode: 42
five-number summary: 15~24.5~39~45~50
range: 35
IQR: 20.5
MAD: 10.2
The histogram to the right shows the number of students in a math class with each grade.
a. How many students are in the math class?
b. Which interval would have the grade 70%?
a. 20 students
b. 70-80
Connie has 1 blue marble, 1 green marble and 1 red marble. She randomly chooses one marble, replaces it, and then randomly chooses a second marble.
a. List all of her possible outcomes (example: BG means blue first, then green)
b. What is the probability she will choose a green marble and then a red marble?
a. BG,BB,BR, GB,GG,GR,RB,RG,RR
b.1/9
What is the probability of tossing a coin three times and having it land tails every time?
1/8
Find the five-number summary for Dylan’s points scored in the twelve basketball games. 8, 14, 27, 24, 18, 15, 6, 30, 26, 17, 10, 21
6 ~ 12 ~ 17.5 ~ 25 ~ 30
The histogram to the right shows the number of students in a PE class with their mile running times.
a. How many students are in the PE class?
b. Which interval would have the time 8 minutes?
c. In which interval of time did most students finish?
a. 30 students.
b. 8-9 minutes
c. 9-10 minutes
A bag has 40 marbles.
a. How many marbles should be red if the probability of randomly choosing red is 30%?
b. How many marbles should be green if the probability of randomly choosing green is 1/5 ?
c. How many marbles should be blue if the probability of randomly choosing blue is 0.5?
a. 12
b. 8
c. 20
Goya rolls a red and blue number cube. What is the probability the red number cube will have a number greater than 2 and the blue number cube will have a number less than 2?
1/9
Find the mean absolute deviation for the data set. 4, 5, 9, 10, 12
2.8
Bryan randomly asked several students which type of animal they had at home as a pet. The results are in the pie chart below.
a. What percent of the students had dogs?
b. What percent of the students had birds?
c. How many total students did Bryan interview?
a. 60%
b. 10%
c. 200