Algebraic long division
Divide 2x + 3x - x + 1 by x + 2
The quotient will be here.
x + 2 is
2x + 3x - x + 1
is the dividend
f(x)=bxifandonlyifb>0andb 1 then
f-1(x) = logbx
Ifx>0and0<b 1 then
y = logb x if and only if by = x
Remember how to FACTOR?
Always look for a GCF 1st.
If you have a binomial, check to see
if it is a difference of two perfect
Statistics 1st Semester Exam
Exam Will Cover:
AP Statistics: Chapters 1.1 6.3
Probability and Statistics: Chapters 1.1 5.5 (skip section 3.5)
Both exams will consist of 30 Multiple Choice and 3 Free Response questions.
Each Multiple Choice qu
Section 2.4 Working with Summary Statistics
Mean, Median, SD, IQR, 5-Number Summary
Know when to use which measures for certain types of distributions
Influence of Outliers on the Summary Stats
Recentering a data set
Rescaling a data set
Correlation is not Causation. Just because two variables have a strong correlation it
does not mean one causes the other. It could, but doesnt have to.
Know how to interpret a computer statistics software printout. See page 94 or 249 of
5-Steps for help.
A 95% confidence interval is what is assumed if it is not specified. The meaning of the 95%
confidence interval itself is: We are 95% confident that the true population value is within this
interval. (State this in context of the problem).
A 95% confiden
COMBINED VARIABLES RULES:
BINOMIAL DISTRIBUTION EXPERIMENT has the following properties:
Consists of fixed number of, n, of identical trials
Only two possible (bi) outcomes: success or failure.
Probability for success is the same for each tr
AP Stats Key concepts to know
Values that describe a sample are called STATISTICS. Values that describe the population
are PARAMETERS. Inferential statistics uses statistics to estimate parameters.
Describing a set of data includes a description of: Measu
Factoring a SUM of Cubes:
a3 + b3 = (a + b)(a2 ab + b2)
Remember SOAP for the
Same Opposite Always Positive