Unit 1 (A)

Question 1

What are the 2 Types of data

Answer 1

Qualitative

Quantitative

Question 2

What is qualitative data (another name for it also)

Answer 2

Categorical data - group data in diff categories based on specific characteristics

Question 3

What is quantitative data

Answer 3

Numerical data

Question 4

What data does a histogram display

Answer 4

Large sets of quantitative data

Question 5

When are relative frequencies used in a histogram

Answer 5

when comparing distributions of different size populations

Question 6

What is the center

Answer 6

which separates the values (or area under the curve in the case of a histogram) roughly in half

Question 7

What is the spread

Answer 7

the scope of the values from smallest to largest

Question 8

What is a cluster

Answer 8

which show natural subgroups into which the values fall

Question 9

What is a gap

Answer 9

which show holes where no values fall

Question 10

What is an outlier

Answer 10

Extreme values

Question 11

What is the mode

Answer 11

The major peak(s) of a distribution

Question 12

What is unimodal

Answer 12

1 Peak in the distribution

Question 13

What is bimodal

Answer 13

2 Peaks in the distribution

Question 14

How to describe a graph (acronym)

Answer 14

SOCS 
Shape 
Center
Spread
Outliers/gaps

Question 15

5 Diff common shapes

Answer 15

Skewed left
Skewed right
Uniform
Symmetric
Bell shaped

Question 16

What is a distribution that is skewed left

Answer 16

Rises in the right

Spreads thinly toward the lower values.

Question 17

What is a distribution that is skewed right

Answer 17

Rises in the left

Spreads thinly toward the higher values.

Question 18

What is a uniform distribution and what graph

Answer 18

Histogram

Is a horizontal line.

Question 19

What is a symmetric distribution

Answer 19

The two halves of the graph are mirror images of each other.

Question 20

What is a bell shaped distribution

Answer 20

Is symmetric, a center mound and 2 sloping tails.