Scribe Post May 02

Today we go over the quiz that we did yesterday. Here are the answer for the quiz:

a)N=120                                b)N=60
I%=4                                          I%=5
PV= -370000                           PV=20000
PMT=0                                      PMT= -377.42
FV=551608.09                         FV=0
P/Y=12                                      P/Y=12
C/Y=12                                      C/Y=12

c) N=60                                                             d)N=60
I=3.8%                                                                  I%=3.8
PV=0                                                                     PV= -238960.6
PMT= -(4000-377.42)= -3622.58                   PMT= -4000
FV=244457.4                                                       FV=559378.08
P/Y=12                                                                 P/Y=12
C/Y=12                                                                 C/Y=12

Next scribe is CJ...

Scribe Post April 22

Hi guys, today we studied about solving problems using Trigonometric Method: Pythagorean Theorem, Law of Sine and Law of Cosine.

You can use Law of Cosine when you have Side Side Side (SSS) or Side Angle Side(SAS). Otherwise, you can use Law of Sine to solve the problems.


We also did an example by using Law of Cosine and Properties of angles. Here are the answers:
_ Magnitude of the resultant vector: 0.0644 N
_ The direction of the resultant vector: bearing 70.48 degree.

The next scribe will be ickie .

Scribe Post

Hi guys , sorry I'm late. Now I'm going to review something that we studied in the last 2 classes.
We studied about Statistics , there are some definitions we should remember :
_ Statistics : The branch of mathematics that deal with collecting, organizing, displaying, and analyzing data.
_ Datum : one bit (piece) of information.
_ Data : many bits (pieces) of information.
_ Mean : The symbol for mean is "X bar". The arithmetic average of a set of values.


_ Median (med) :
1) The middle value in an ordered (from smallest to largest) set of data.
2) If there are an event number of data, the median is the average of the middle pair in an order of data.
_ Mode : the datum that occurs most frequently in a set of data.
_ Standard Deviation:

BOB

Hi guys, how was the pre-test this morning? I think it's kind of tricky , especially question 5 ,you can see the answer for that question on today's slide ( March 10 slide 6) . The key for that question is the "Choose" formula , which makes me so confused xD.I hope you guys learned how to use the "Choose" formula to solve those kinds of questions. In the "Choose" formula , order doesn't matter.
That's why we have 10C4 : number of ways to choose 4 from 10 people, and 2C2 : number of ways to choose Deanne and Peter , 8C2 : number of ways to choose 2 another people for the group from 8 people left. We'll get (2C2*8C2)/10C4 as the result of question a , like Mr.K did.
Hope you guys will do better in the test tomorrow.Good luck