Math 118: Exam 3
Name:
RED
Complete the following exam and record your answers on the bubble sheet provided.
1. A woodcarver makes toy boats to sell at the Provo Art Fair. A simple sailboat requires 1
linear foot of wood and 40 minutes of labor, whereas a
Math 118: Finite Mathematics
Section 1 Instructor: Jackie M. Roberson, 162 TMCB, [email protected]
Section 2 Instructor: Emma Turner, 260 TMCB, [email protected]
Text: Finite Mathematics, Custom Edition for Brigham Young University by Lial, Greenwell,
The range is a measure of spread, and is equal to the maximum point minus the
minimum point.
Another range of spread is standard deviation.
In order to find the sd, follow these steps:
Find the mean
Find each numbers deviation from the average
Square
Can solve systems of equations by using the following methods:
Gauss-Jordan method (what the crap is this?)
Just solve for a variable and substitute it in
The difference between the number of equations and the number of variables is the
number of param
A set is a grouping of any objects.
A set can be null, or empty.
A subset of a set is any grouping of the objects within that set, an empty set, and the set
itself.
If x is the number of elements in a set, then the number of subsets of that set is 2^x
In an experiment, there is an observable result.
A trial is a repetition of an experiment
An outcome is the set of possible results for the experiment
The sample space is the set of all possible outcomes as a set
For flipping a coin, s=cfw_h,t
For r
This section deals with probabilities more than just the number of ways things can
happen.
Distinguishing between combinations, permutations, and the multiplication principle is as
follows:
Combinations dont care about order
Permutations do care about
A conditional probability is the probability that an event will occur if another event has
already occurred.
This is stated mathematically as P of E given F = P(E intersection F)/P(F), given
that P(F) does not equal 0.
The product rule states that the p
The probability of A is the number of ways A can happen divided by the number, S, of
things in the set.
The number of permutations in a set can be defined by the multiplication rule. Basically,
just multiply the number of different components by each oth
income
expenses
total
September October November December January February March April May June
500
510
520
530
540
550
560 570 580 590
400
400
400
400
400
400
400 400 400 400
$1.00
July August September October
600
610
620
630
400
400
400
400
Estimate of