Chapter 5: Producing Data
Section 5.1: Designing Samples
Collecting Data
In order to better understand the characteristics of a population, statisticians and researchers often use a
sample from that population and make inferences based on the summery resu
Rules for means & variances for two random variables
Here is an illustration of these important statistical formulas (which are NOT included on your AP Stat
Formula packet)
If X and Y are any two random variables, then
x+ y = x + y
x y = x y
a +bx = a +
Chapter 8: The Binomial and Geometric
Distributions
Section 8.1: The Binomial Distribution
There are many experiments and situations that result in what are called dichotomous responses
responses for which there exist two possible choices (True / False,
AP Stat
Review Problems
Name_
1.) Many manufacturing companies use statistical techniques to ensure that the products they make meet
standards. One common way to do this is to take a random sample of products at regular intervals
throughout the production
AP Stat
Review Problems
Name_
1.) Many manufacturing companies use statistical techniques to ensure that the products they make meet
standards. One common way to do this is to take a random sample of products at regular intervals
throughout the production
Chapter 9: Sampling Distributions
Section 9.1: Sampling Distribution
The introduction to the topic of statistical inference using statistical concepts in interpreting scientific
results from studies and surveys.
Parameter: A number that describes an aspec
Chapter 10: Estimating with Confidence
Section 10.1: Confidence Intervals: The Basics
If we want to estimate the value of some parameter from a population, we can take a sample and calculate
a statistic from that sample. The sample statistic is an estimat
223
Chapter 10
10.1 (a) The sampling distribution of x is approximately normal with mean x = 280 and
60
=
2.0702 . (b) The mean is 280. One standard deviation from
standard deviation x =
n
840
the mean: 277.9 and 282.1; two standard deviations from the me
Chapter 1: Exploring Data
AP Statistics Preliminaries
Statistics is the science (and art) of learning from data.
Individuals are the objects described by a set of data. Individuals may be people, but they may also be
animals or things.
A variable is any c
AP Statistics NAME:
Chapter 2 Muitiple Choice
The Normal Distribution
' ' tely normal with a mean of
' an men aged 18 to 24 are approxrma g
32. ;:§:§::;:rd deviation of 2.5 inches. About 20% ofthege men are taller than
(A) 66 inches
(B) 68 inches
(C) 7
Density Curves and Normal
Distributions
Density Curves
So far we have worked only with jagged
histograms and stem plots to analyze data
As we begin to explore more fully the many
statistical calculations and analyses one can
statistical calculations and
Chapter 2: The Normal Distributions
Section 2.1: Measures of Relative Standing & Density Curves
Z-scores (Measures of Relative Standing)
Suppose there is one spot left in the University of Michigan class of 2014 and the admissions department
has the decis
Chapter 3: Examining Relationships
Most statistical studies involve more than one variable. Often in the AP Statistics exam, you will be
asked to compare two data sets by using side by side boxplots or histograms etc. However, there are
times where we wan
AP Statistics
Mr. Coppock
Chapter 3 Practice Problems
NAME_
1.) The following statistics come from 78 seventh-grade students. The x variable represents their IQ
and y represents their GPA.
x = 108.9
s x = 13.17
y = 7.447
s y = 2.10
The correlation between
Chapter 3: Examining Relationships
Most statistical studies involve more than one variable. Often in the AP Statistics exam, you will be
asked to compare two data sets by using side by side boxplots or histograms etc. However, there are
times where we wan
AP Statistics
NAME_
Confounding/Common Response/Lurking Variable Exercises
Section 4-3
Use what you have learned in section 4-3 to answer the following questions.
1.) Measure the number of TVs per person x and the average life expectancy y for the worlds
AP Statisitics
NAME_
Chapter 4: Non Linear Transformations (2 Exercises)
Mr. Coppock
The following table lists the temperature of an instrument measured as its distance from a heat source is
varied:
Distance (cm)
1
2
3
4
5
6
7
8
Temperature (F)
130
105
95
Chapter 4: More on two-Variable Data
Section 4.1: Transforming Relationships
Question: What do you do if the data shows a relationship that is not linear?
Answer: Try a transformation.
Applying a function such as the logarithm or square root to a quantita