Data and Stats Unit Review

Probability

100

What is the chance of rolling a 6 on a 6-sided die?

1/6 OR 16.7%

200

What is the probability of pulling a blue marble from a jar with 6 red, 8 blue, and 5 green marbles?

8/19

300

A die is rolled twice. What is the probability of both rolls being 3?

1/36 OR 1/6 x 1/6

400

What’s the probability of flipping Heads and rolling a 3 on a 4-sided die?

1/8 OR 1/2 x 1/4

500

A basket has 5 yellow, 2 red, and 4 blue slips. What’s the chance of getting red?

2/11

Mean, Median, Mode

100

What is the mode of 3, 5, 5, 6, 7?

5

200

What is the median of: 2, 4, 6, 8, 10, 12?

7

300

Find the mean of: 72, 80, 83, 88, 78

80.2 OR 80

400

Find the range of: 14, 22, 24, 24, 29

15

500

Find the mean, median, and mode of: 36, 46, 34, 32, 32, 33

Mean: 35.5

Median: 33.5
Mode: 32

Data Sets

100

Which set has the smallest range?
A: 10, 12, 15, 19
B: 1, 20, 25, 30

A = 9

200

What’s the outlier: 7, 9, 8, 110, 10, 12?

110

300

Which data set has largest range: A: 312–554 or B: 232–391?

A: 242

400

Arrange from least to greatest: 48, 82, 51, 15, 72, 78 → Then find median

61.5

500

Test scores: 72, 82, 92, 82, 72, 102, 92, 82. What’s the mean?

85.75 OR 86

Multi-Stage Probability

100

If you flip a coin and roll a dice, how many total outcomes are there?

12

200

Tree diagram: what is P(Tails and rolling a 2)?

1/12 OR 1/2 x 1/6

300

Roll 2 dice. What’s the chance of getting a sum of 7?

6/36 OR 1/6

1 and 6
2 and 5
3 and 4
4 and 3
5 and 2
6 and 1

400

A bag has 3 red balls and 5 blue balls. You draw one ball, put it back, and then draw again. What is the probability of getting red both times?

9/64 OR 3/8 x 3/8

500

Spinner with 3 colors: what’s P(blue 2 times in a row)?

1/9 OR 1/3 x 1/3

Concepts and Vocab

100

What does "mean" refer to in a data set?

The average OR add all numbers and divide by how many there are

200

What does the "range" refer to in a data set?

The difference between the highest and lowest numbers

300

How do you find the median if you have an even amount of mixed up numbers in a data set?

You order the numbers from least to greatest, and then average the two middle numbers. 

400

What does it mean if a data set has no mode? Give an example

When all numbers in the data set only occur one time OR 1, 2, 3, 4, 5

500

What is the difference between theoretical probability and experimental probability?

Theoretical is based on expected outcomes, while experimental is based on actual outcomes.