1. The data in the chart below shows the survival times in days for guinea pigs after they were injected
with tubercle bacilli in a medical experiment.
43
83
45
84
53
88
56
89
56
91
57
91
58
92
66
97
57
99
73
99
74
10
0
113 114 118 121 123 126 128 13 13 1
SAT PREP PORTION OF C~SS
Let a b be defined by the operation a b = a~ + 1. Find the value of 7 -5.
~,-: -,7
7-r
~
b-: -5-
.-
o
3. If f(x) = 3x - 8 and g(x) = 7 + 5x find:
b, g(f(-3)
4.
Answer each of the questions based upon the graph below.
b. what is f(
A description of different houses on the market includes the ,b~dowmg three variables.
Which of the variables is quantitative?
A) The square footage of the house
C) The monthly electric bill
B) The monthly gas bi!I
D) All of the above,
A survey typically
(I)
Descriptive Statistics
( II )
Probability
Var
If X has a binomial distribution with parameters n and p, then:
P(X=k)=
If is the mean of a random sample of size n from an infinite
population with mean and standard deviation , then:
( III ) Inferential
Midterm Review: Factoring and Rational Expressions
Factori n_q Review
"Guess andCheck"
1.
xz + 12x + 32
"A C/dethod"
3.
(What did you foil to get this product?)
2.
rnz - 2m - 63
(Use AC method when the leading coefficient is greater than 1)
lOxz + x - 3
~
Individuals (Observational units): The objects described by the set of data. They can be people,
but they can also be just about anything.
Variables: Any characteristic of an individual.
Distribution: Describes the different values of a variable and the f
A deli~cery service places packages into large containers before flying them across the country, These filled
containers vary~greatly in their weight. Suppose the delivery services airplanes always t~ansport two such
containers on each flight. The two con
Binomial Probability
Expect at least 10 successes & failures
Probability of success is constant
Ex: Find the probability of rolling five ones with a fair die 20 times.
or binompdf(20,1/6,5) = 0.129
Binomial Probability
Looking at an expected value:
E(x) =