Ch. 10 Statistics and Probability

Central Tendency

100

Find the mode of the following data:7, 7, 8, 8, 8, 9, 10, 10, 12, 13, 13, 13

8 and 13

200

Find the median of the following data: 11, 17, 17, 21, 22, 25, 44, 52, 60, 65

Median: 23.5

300

Find the mean of the data for time spent biking in minutes: 34, 30, 45, 30, 40, 38, 28 (HINT: don't forget your label)

35 minutes

400

Find the mean, median, and mode of the data: 40, 37, 45, 19, 49, 50, 46 (round to the nearest whole number)

Mean: 41

Median: 45

Mode: none

500

Find the mean, median, and mode of the data: 18, 21, 18, 29, 44, 49, 38, 32 (round to the nearest tenth)

Mean: 31.1

Median: 30.5

Mode: 18

Exponent Review

100

Simplify

(x³)(x⁷)(x²)

x¹²

200

Simplify

(x⁵y⁷)(x⁶y^-4)

x¹¹y³

300

(x²y⁸)⁵(a⁷b³)⁶

x¹⁰y⁴⁰a⁴²b¹⁸

400

(x¹²)^-2(x⁶)⁴

1

500

(y³)⁴/(y⁸y⁷)

1/y³ or y^-3 

Graphing Lines

100

Graph y = 3/2 x + 3

200

Graph y = 5x - 3

See whiteboard

300

Graph 9x - 6y = 18

See whiteboard

400

Write an equation for this line: 

y = -2x + 5

500

Graph the system of equations: x = -3 and y = 4. Label the solution point. 

Answer on whiteboard

Probability

100

Ms. G has two Oreos and three chocolate chip cookies. If she picks one of them at random, what is the probability she draws an Oreo? Express as a fraction, decimal, and percent.

2/5 = 0.4 = 40% 

200

Ms. G is rolling a regular number die. What is the probability she rolls either a 1 or 6? Express as a fraction, percent, and likelihood

2/6, = 1/3, 33.33%, unlikely

300

A bag contains 3 red tiles, 5 black tiles, and 4 white tiles. You choose a tile without looking. What is the probability that you pick white? Write as a fraction, decimal, and percent.

4/12 = 1/3 = 0.33 = 33%

400

A bag contained 3 red tiles, 5 black tiles, and 4 white tiles. You picked 2 black tiles already. What is the probability that the next one will be black? 

3/10 = 0.3, 30%

500

Ms. G has a 12 sided (dodecahedron) cube, with the sides numbered 1-12. What is the probability she rolls the cube and it lands on a number greater than or equal to 8. Express as a fraction, percent, and likelihood

5/12 = 0.417 = 41.7%

Angles Review

100

What do you call angles A and D? 

Alternate Interior Angles

200

What do you call angles A and C? 

Consecutive Interior Angles

300

Solve for x below. 

X = 17

400

Solve for x below

x = 35

500

Solve for x. 

x = 35