Chapter 1 Data Collection

Population

Census

Sample

Sampling Units

Sampling frame

simple random sample

systematic sampling

stratified sampling

quota sampling

opportunity sampling

quantitative data/variables

qualitative data/variables

continuous variable

discreet variable

classes

class boundaries

midpoint

class width

Chapter 2 Measures of location and spread

mode/modal class

median

mean

for a mean in a frequency table

lower quartile for discrete data

upper quartile for discreet data

range

IQR

Interpercentile range

Variance

Standard Deviation

Variance and Standard Deviation in a frequency table

mean of coded data

standard deviation of coded data

Chapter 3 Representations of data

outlier

cleaning data

frequency density (height of bar)

frequency polygon

comparing data sets

Chapter 4 Correlation

bivariate data

Correlation

Regression line

the coefficient b

Interpolation and Extrapolation

Chapter 5 Probability

Venn diagram

mutually exclusive events

independent events

tree diagram

Chapter 6 Statistical Distribution

Probability distribution

sum of probabilities

Binomial distribution, B(n,p)

probability mass function

Chapter 7 Hypothesis Testing

Ho, null hypothesis

H1, alternate hypothesis

One tailed

Two tailed

critical region

critical value

actual significance level

two-tailed test