So today Mr. Max went over some review and told us what kind of questions would be on the exam. Heres the pictures

Hey, Today we're reviewing Statistics and Personal Finance. Mr. Max also handed out the key to the Vectors Quiz today. Tomorrow he is going to give us back our vectors quiz.

Hellloo.. So today we are finishing up with exam review starting with vector examples.

Our first example is from the Janurary 2006 exam, question 11:

Marina and Phillip are pulling a rock with equal force. They are at an angle of 40 degrees to each other.

a) If the resultant vector has a force of 50 newtons, determine the magnitude of the force with which each pulling. Show your work.

(Mr.Max also said that in the past years Euklid has not worked during the exam and said if that happens not to worry because it will not effect our mark)

Displayed here is the solution to A) on Euklid:

The magnitude of the force is 5.3 cm.

b) If the resultant force remains at 50 newtons, at what angle could Marina and Phillip pull in order for Marina to pull with double force of Phillip. Show your work.

Probability Review:

M/C - 1-2 questions

C.R - at most three questions -- most likely 2.

POSSIBLE TYPE QUESTIONS

1) Pathway Problem (PASCALS triangle - type solution)

2) F.C.P (fundamental counting principle). Tree Diagrams/Sample Space/Notation/Factorials/and maybe Perms and Coms

*3)* Independent and Dependent Events - where the "denominator" changes from part to part.

4) Mutually Inclusive/Exclusive Events

Mutually Exclusive(cannot overlap) - P(A or B) = P(A) + P(B)

Mutually Inclusive(can overlap) - P(A or B) = P(A) + P(B) - P(A&B)

Example(s):

-10 people emergency 7 people(shock), 8 people(broken bone), 2 people(cuts)

a)P(shock)

A=7/10

b)P(broken bones)

B=8/10

c)P(cuts/abrasions)

C=2/10

d) Which could be mutually exclusive? And which are definitely not?
Could be Mutually Exclusive: shock and cuts and broken bones and cuts.

Definitely Shock and Broken Bones can not be Mutually Exclusive because 15 together is too many people.