## Thoughts on Data Analysis 2017

1) I think that statistics have a large impact on our society, and people beleive false statistics, without realizing that it may be fake, or slightly incorrect. People can also make good, and bad choices, based upon statistics. Such as: if you should wear a helmet while riding a bike – statistic is how many people get injured without a helmet.

2) I have learned that people who create statistics and polls, can make the final readily sound better. When a certain percentage is finalized, it can be “fabricated” to act if the number is larger or smaller than it acually is. Also there is statistics that were bias towards certain people, but the statistic looks like it was a fair poll.

3) Many statistics are faulty, and the percentages are not quite correct. People don’t realize this, and the statistics can cause problems in people’s lives. There are also unfair poll questions. Theses questions are worded in a negative or positive way in order to get a certain response. The questions mean the same thing, but are more likely to get on answer rather than another. This is another very unfair way to make a poll.

## 11.1 Factors Influencing Data Collection

SAMPLE 1 From Math Links 9 p. 417

When I first read the article, I thought…

I thought that it was dumb for people to buy the exact same shirt but in a different color for \$20 extra! If I were to buy either of those shirts, I would buy the cheaper one, because it is the same shirt, so there is no reason to buy a more expensive shirt. I think that people believe that the more expensive shirt is better quality.
After learning about influencing factors, I now think…because…

Cost and timing were big influencing factors in this survey. The cost of the two different shirts, make people belive that one is going to be better quality than another. The timing of the people taking the survey was quick, so people didn’t mind taking it.

In the future, when reading and interpreting survey data I will …

Make sure to identify and avoid bias in future surveys. I will remember that I dont have to answer each question, if it lets me.

## Plot Graph assignment

This is my plot graph assignment.

## Math Budget Activity

1. Fixed expenses: Morgage, Hydro, Wifi

2. Variable expenses: Your long distance phone bill, Cable for tv, your Visa bill.

3. You could try to use your car less, to save money on gas.

4. You could watch less pay-on-demand movies, and you could eat out at restaurants less.

## Math Exponents Review

This is the mind map review I created.

## What I’ve learned in Math this Week

Week of October 24

In Math, we have been learning about Powers and Exponents. The most beneficial thing that I have learned so far in this unit, has been the rules for Exponents. Here are a few rules that I have learned.

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The rule for Multiplying powers with the same base is:

“If the base is the same, you can write the base the same with the exponents added together.”

Example: $5^3$$5^2$

$5^3$ = 5x5x5    $5^2$ = 5×5

This equals $5^5$ because the exponents were added together and the base is the same.

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The rule for Dividing powers with the same base is:

“When you are dividing powers with the same base, you subtract the exponents and leave the base the same.”

Example: $9^7\div9^2$

This equals $9^5$ because the exponents were subtracted and the base was left the same.

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The rule for the Power of a product is:

“when a product is raised to an exponent, you can re-write each factor in the product with the same number of exponents.”

Example: (4•5)6  = (4•5)(4•5)(4•5)(4•5)(4•5)(4•5)

= $4^6$$5^6$

The answer is  $4^6$$5^6$ because there are 6 4’s and 6 5’s so you write it as $4^6$$5^6$ .

## Word Problems with Fractions

Here is my Word problems with fractions project.