Lecture 6

Question 1

Population

Answer 1

Collection of all possible elements, values, or items associated with a situation

Question 2

Sample

Answer 2

A subset of elements or measurements taken from a population

Question 3

Two types of samples

Answer 3

Random Sample

Nonrandom Sample

Question 4

Variables Data

Answer 4

Characteristics that can be measured

Question 5

Attributes Data

Answer 5

Characteristics that can be observed as being present or not; or conforming or not

Question 6

Continuous

Answer 6

A measured value that can take value within the range

Question 7

Discrete

Answer 7

Countable using whole numbers

Question 8

Graphical and Analytical Data Analysis

Answer 8

Shape
Measures of Central Tendency
Measures of Dispersion

Question 9

Shape

Answer 9

Modes
Symmetry
Skewness
Kurtosis

Question 10

Measures of Central Tendency

Answer 10

Mean
Median
Mode

Question 11

Measures of Dispersion

Answer 11

Range
Standard Deviation
Variance
Coefficent of Variation

Question 12

Mesokurtic

Answer 12

Normal Tails

Question 13

Leptokurtic

Answer 13

Heavy Tails

Skinny

Question 14

Platykurtic

Answer 14

Light Tails

Fat

Question 15

1 Standard Deviation =
2 Standard Deviations =
3 Standard Deviations =

Answer 15

68%
95%
99.7%

Question 16

For Normal Distribution must have:

Answer 16

Mean = Median = Mode