And
http://www.boxofficemojo.com/weekend/chart/?view=main&yr=2014&wknd=02&p=.htm
2-
I was
going through the weekly gross total for movies the other day. So, I chose the
top 5 out of the whole list - only the Name of each movie for Tuesday
1/14 and Wednesday 1/15 Gross. The relationship is a function because
each movie I have on the list has its own gross:
Name of the movie
|
Tuesday 1/14
|
|
|
|
$3,623,025
|
$2,817,500
|
$1,306,965
|
$1,011,962
|
|
$1,293,865
|
$1,000,355
|
|
4-
Frozen
|
$976,359
|
$751,353
|
$824,455
|
$700,110
|
| 3- |
4-
Relationship
of this function between the top 5 movies and their gross for two days in a
row. The input is the name of the movie that people go watch, and the output is
how much money that specific movie made that day.
(Movie)= f(TotalGross)
5-
The
function is not linear because if I calculate the change in movies’ gross and
dividing it by the time, I won’t get equal results.
delta D1 / delta T1 is not equal to delta D2 / delta T2
6-
I see
the function as a mathematical model because the output (gross) depends on the
input (movie).
B)
I found this interesting article
about women majoring in computer science through time.
At the beginning while reading I
thought of it as a function until the numbers became percentages and weren’t
mentioned at the end. The article became statistical rather than functional.
For
example, when the writer starts with 1986 having an exact number of 15,129
female in IT field is different than mentioning just a percentage for 2004 of
34% and followed by a dropped percentage of 28% for 2011. I don't think I can have a function of of difference type of data (percentages vs numbers), unless I convert one to the other. Briefly, in this specific article each input (year) has multiple output (number that's missing) and a percentage.
I loved that you used the movies as your topics. It's so interesting that Lone survivor is #1!
ReplyDeleteOne question I have is if a percentage compared to a whole number can still be a function, it still has one output per input right?
ReplyDeleteYes, you are right!
ReplyDeleteHowever, the way I was looking at it and visualizing its table not by comparing the percentage to a whole number. We can if we want, but the given data in this specific article I saw two outputs instead of one.
- Percentage: doesn't have an exact value more statistical. Meanwhile, you can get an approximate total for grads in CS major for each year if you do the calculation.
I hope my answer helps!
The tables help us get a quick glimpse of whether the data is linear or not, almost as useful as a graph! I was surprised to see Lone Survivor come in 1st place.
ReplyDeletedahlia,
ReplyDeleteyour first example is perfect and your explanations for it are spot on. not to mention the example is interesting. i personally liked frozen more than wolf of wall street.
your second example actually represents two relationships that are BOTH FUNCTIONS with respect to percentage. female IT individuals is a function of year and male IT individuals is another function of year. they just graph the information on one grid. i hope you understand why these are functions.
professor little