· 0589

Smiling sweetly, the girl continued to watch the group. She laughed at the right times and she said the right things. But it was only when she was alone, when no one could see her, did she act different, and let the negatives get to her.

I don't remember what happened today. Um, the teacher wasn't really in the room for art. At one point during the lesson, this year 12 girl walked in, and she was wearing mufti. I really liked her shoes, daayum. PE theory lessons aren't actually that bad, since it's on sex ed. That's not meant to imply that I'm totally interested in sex and sex ed, but the lessons aren't really hard or anything. We had to roleplay a scene, showing how factors such as society, religion, culture, etc. affect your views on things like losing your virginity, homosexual relationships and abortions. So, Vanessa pretended to be a Texas Catholic leader or something, and me and Yvy were going to get married, ahahahaha. Maths was .. equations. Yay, how fun.

We've got that maths test tomorrow, and I don't think I'll do too well. Consumer and exploring data are the boringest subjects ever. Trig is easy, for the most part, but I don't think they'll add any super hard questions in. But it's not like I know every answer for the whole exam, either. Stupid, stupid maths. And stupid maths half yearly :(.

We were on the train, right. And the group we normally sit in was kinda split in two. Anyway, so Angela was drinking water, like air sipping, and she's so fail at this shiz, and doing it on a moving train, what the eff. So anyway, she's drinking, so I pushed her shoulder slightly so she'd screw up, then she spat all the water at my face LOL [pwnage much --'] and I got water on my face, down my shirt, on my legs and my shoes got wet :(. But I'm just like LOLLLL, cuz .. :L. At Cabra, I missed my train. And then I caught my train back to Livo and took the bus home. And nothing interesting happened at Cabra, I rkn. I like Danica's Happy Cup drinks, ahahaha, she had like a mocha milk tea or some shit. It was actually nice, though, and it's better than coffeeee :D.

I went home and watched One Tree Hill for about one and a half hours. I am such a loser, mann.. I'm on the 6th disc, and I have art homework and a maths test tomorrow. How much time have I wasted, man :(.

LOVE CAN GIVE YOU
STRENGTH
YOU NEVER KNEW YOU HAD.

Edit @ 8:15PM We gotta study today, bois.

TYPES OF DATA

A. CATEGORICAL DATA

i. DISTINCT CATEGORIES
for example, what type of pet do you have; the answers (scores) will be a certain thing. Eg. Fish, cat, dog, etc.

ii. ORDERED CATEGORIES
for example, hotel ratings, movie ratings. The answers (scores) are ordered, yeah? Eg. R MA MA15+ G PG

B. NUMERICAL DATA

i. DISCRETE DATA
this stuff is obtained by a couting method, all possible values clearly separated from each other. Eg. Shoe size.
ii. CONTINUOUS DATA
obtained by a measuring purpose, and all possible values are on a continuous scale. Eg. Height of a person.

RANGE: Highest score - Lowest score
MEAN: Total fx column / total f column
MODE: Score with highest frequency
MEDIAN: Middle score when all scores are put in order
OGIVE: Cumulative Frequency polygon/histogram

If they give you a GROUPED FREQUENCY DISTRIBUTION TABLE, then you have to figure out the CLASS CENTRE (the middle score of the class).

FINDING THE INTERQUARTILE RANGE
The IQR is the middle 50% of the scores.
Put all the scores in order. Find the median (Q2), which is the middle score. So, on either side of the median, you'll have scores, right? So, you have to find the middle scores of each side. So, when you find the IQR, you divide the scores into 1/2 and 1/2, then divide the 1/2 and 1/2 into 1/4 (Q1) and 1/4 (Q3). The IQR the middle 50% of the scores. So, Q1 to Q3 = IQR.

BOX AND WHISKER PLOTS
1. Lower extreme
2. 1st Quarter
3. Median/2nd Quarter
4. 3rd Quarter
5. Upper extreme

CONSUMER ARITHMETIC

WAGE: payment calculated on the no. of hours worked in a given period.
SALARY: fixed payment you get, quoted as a yearly amount.
LOADING: additional payment over the normal wage.
BONUS: percentage of a person's wage or salary given if you achieve certain things.
BUDGET: plan for the use of expected income.
BEST BUYS: Just make one of the values be the same
TAXABLE INCOME: Total income - Total tax deductions
TAX PAYABLE: Use the table they give you to find out
REFUND/BALANCE: Taxable income - Medicare levy - Tax payable

TRIGONOMETRY

S = O / H ; C = A / H ; T = O / A