Math Exam Review

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Here is a video:

Probability

Here is a link on probability.

Here a video on probability:

Probability

Here is a Link on Probability.

Here is a video on probability:

Question:

The first way to organize the outcomes is to make a chart or a table.

Independent events - The outcome of one event has no effect on the outcome of another event.

Sample Space - All possible outcomes of an experiment.

Question:

The second way to organize the outcomes is to make a tree diagram.

Tree Diagram - A diagram used to organize outcomes contains a branch for each possible outcome of an event.

Here is an example:

Show You Know

Question:

Here is a math game on probability.

Here is a video on probability:

Order of Operations

1. Check to see if there are brackets in the question.

2. Check to see if there are exponents in the question.

3. If there is division or multiplication in the question, start from left, then right. If the question is division first, then you divide. If the question is multiplication first, then you multiply.

4. If there is addition or subtraction, start from left, then right. If the question is addition first, then you add. If the question is subtraction first, then you subtract

(64-32 x 2) + (22-3 2) =

First, look if there is any brackets.Yes, so solve the question in the bracket.

(64-64) + (22- 3 2)=

0 + (22-3 2) =

0 + (22-9) =

Now, do you see addition or subtraction? Yes, so you solve question from left to right.

0 + 13=

= 13

1.

2.

2.5 + 1.25 + 5 x 1.6 =

2.5 + 1.25 + 8 =

3.75 + 8 =

= 11.75

Ashley needs $ 11.75 to purchase the items she wants.

Here is a link to help you have a better understanding

Test Corrections # 5

Question:

A coordinate grid has

the following set of ordered pairs: (2,-2), (0,-4), (3.0), (4,1), (5,2), (6,3). The point (0,-4) is out of place.

How I got the answer wrong:

Instead of plotting down (-2,-5), I plotted down (-2,-4). So now the points: (-2,-4) and (0,-4) look out of place. But the question said only (0,-4) was out of place not (-2,-5). So I wrote FALSE instead of TRUE. That is how I got the answer wrong.

Blue: (0,-4) - The number that was out of place.

Green: (-2,-4) - The wrong ordered pair

Here is a link on plotting ordered pairs.

Here is a Video on plotting ordered pairs.