Summer Vocab

Question 1

Statistics

Answer 1

The study of variability

Question 2

Variability

Answer 2

Differences

Question 3

2 branches of AP STATS

Answer 3

Inferential and descriptive

Question 4

Descriptive stats

Answer 4

Description on data

Question 5

Inferential stats

Answer 5

Using data to tell the big picture

Question 6

Data

Answer 6

Any collected info

Question 7

Population

Answer 7

Group u r interested in

Question 8

Sample

Answer 8

Subset of a population

Question 9

Parameter

Answer 9

A numerical summary of a population

Question 10

Census

Answer 10

A sample of the entire population

Question 11

Discrete

Answer 11

Variables can be counted (integer）

Question 12

Continuous variables

Answer 12

Not integer (weight of a mouse: 4.344oz)

Question 13

Quantitative variables

Answer 13

Numeric

Question 14

Categorical variable

Answer 14

Category

Question 15

Data and datum

Answer 15

Datum is singular while data is plural

Question 16

Frequency distribution

Answer 16

A table or a chart that shows how often certain values occur in a data set

Question 17

Relative cumulative frequency

Answer 17

Added up percentages

Alway end at 100%

Question 18

Bar chart and histogram

Answer 18

Bar chart r for categorical data

Histograms r for quantitative data

Question 19

Mean

Answer 19

Old average, balancing point of the histogram

Question 20

Symbol for population and sample mean

Answer 20

Mu (μ) for population

X-bar (x) for sample mean

Question 21

Mode

Answer 21

Most common or peaks of a histogram.