Chapter 0/1/2 Test

Statistics

100

I am the sampling method using this example:  Call every fifth name in the Xavier house.

What is systematic random?

200

Find the mean:  1,2,3,4,5

What is 3?

300

I am the sampling method using this example:  Survey every 7th grader in the Upper School but no one else.

What is cluster?

400

Make a stem and leaf graph based on the following information:  15, 16, 22, 32, 36, 12, 34

What is

1    2, 5, 6

2    2

3     2, 4 , 6

500

Using this information, make a histogram:

What is

1    2, 5, 6

2    2

3     2, 4 , 6

see the board

Properties of Math / Divisibility

100

What property of math is being used:

2(x - 3) = 2x - 6

What is the distributive property?

200

What numbers (2,3,4,5,6,9,10) is 5,100 divisible

What are 2, 3, 4, 5, 6, 10

300

What property of math is being used:

4(0) = 0

What is the Multiplicative Property of Zero?

400

Balance this equation:

2x + 5x = 20 + 8

What is 

7x = 28    divide both sides by 7

x = 4

check:  2(4) + 5(4) = 28

8 + 20 = 28

500

Combine the like terms:

3(x + 4) + 3x - 5y - 2x + 6

What is 

3x + 12  + 3x - 5y - 2x + 6

3x + 3x - 2x = 4x
-5y
12 + 6 =18
4x - 5y + 18

Integer Manipulation

100

-14 - (-4)

What is -10?

200

14 - 25

What is -11?

300

-12 - (-13)

What is 1?

400

4 + -6

What is -2?

500

-5 - 13

What is -18?

Exponents / Absolute Value

100

|-4| ___ |-5|    (greater than or less than)

What is <? 

200

|x| = 7

x = 7, -7

300

-|-4| - |3|

What is -7?

400

-4²

-16

500

(-2)³

What is -8?

More Integer Manipulation

100

8(-2)(-1)

What is 16?

200

-10(-20)

What is 200?

300

-42  divided by  6

What is -7?

400

-40(2) divided by  8

What is -10?

500

5⁰

What is 1?