Chapter 7: The Normal Probability Distributio
ns
Differences between continuous random varia
ble and discrete random variable
From probability distribution to probability densit
y function.
A probab
Review
Qualitative (categorical) Data
Deal with descriptions
Data can be observed but not measured.
Colors, textures, smells, tastes, appearance, be
auty, etc.
Qualitative-> Quality
Review
Quantit
What we will learn in chapter 1 ?
Population.
Sample.
Sample size
The procedures of statistics.
Biased and good sampling.
The entire group of individuals to be
studied is called the population. A
Final Exam Review #4
1. A researcher is studying the factors that affect the eating habits of adults in their mid-thirties.
One of the variables measured is the daily intake of whole grains, measured
Final Exam Review #3
1. Consider the following statements:
In a recent poll, 57% of the respondents supported a school bond issue.
The average age of the employees at a company is 35 years.
Which of
Final Exam Review #2
1. Suppose 74.9% of all students on campus have a job. From a sample of 84 students on campus,
64.3% of the students sampled have a job. Which of the following is true?
a. Both 74
Objectives in chapter 3
1. Measure of center: mean, median, mode.
2. Measure of dispersion: range, standard deviation
3. Measure of position (relativity): Z score and Quantil
e
4. Empirical rule
3-1
3
Chapter 6: Discrete Probability Distributions
Random variable-
Discrete random variable-
Binomial distribution.
What are them?
How to find out mean/standard deviation?
How to calculate related probabi
Chapter 5: Probability
In reality, most of the time, the statistics do not
exactly equal the parameter.
How do we justify using statistics?
We will learn:
1. Concepts of probability
2. Rules of probab
Final Exam Review #1
1. An advertisement for a home being sold contains the variables square footage and average
monthly utility costs. Which of the following best describes these variables?
a. Both v