Topic 3: Data Visualization and Measure of Central Tendencies

Question 1

The statistical measure that identifies a single value as representative of an entire distribution.

Answer 1

typical value

Question 2

A graph or data set organized to show the frequency of occurrence of each possible outcome of a repeatable event observed many times.

Answer 2

frequency distribution

Question 3

The middle number in a sorted, ascending or descending list of numbers.

Answer 3

median

Question 4

A type of distribution in which more values are concentrated on the right side of the distribution graph while the left tail of the distribution graph is longer.

Answer 4

negatively skewed

Question 5

A set of data is the difference between the largest and smallest values

Answer 5

range

Question 6

The value that appears most frequently in a data set

Answer 6

mode

Question 7

Excel formula to get the mean of a data set.

Answer 7

=average(data)

Question 8

The distributions that occur when the long tail is on the right side of the distribution.

Answer 8

positively skewed

Question 9

The average of the given set of values.

Answer 9

mean

Question 10

A chart that plots the distribution of a numeric variable’s values as a series of bars.

Answer 10

histogram

Question 11

Sources of Data - MANUAL

Answer 11

AUDITS
INSPECTIONS
SURVEYS
WARRANTS
INVOICES
CLAIMS

Question 12

Sources of Data - AUTOMATED

Answer 12

POS System
IoT (Internet of things)
Sensors

Question 13

EXCEL VISUALIZATION

Answer 13

Pie
column
statistical
hierarchy
X Y scatter plot
Waterfall
combo
Line
Maps

Question 14

Data Visualization purposes

Answer 14

Comparison; Composition; Relationship; Distribution

Question 15

is a measure of symmetry

Answer 15

skewness

Question 16

range is greater than number of data we wil use

Answer 16

Histogram

Question 17

range is less than number of data we wil use

Answer 17

frequency distribution

Question 18

Skewed to the Right ; The right tail is longer

Answer 18

positively skewed (> + 1) use MEDIAN

Question 19

Skewed to the left ; The left tail is longer

Answer 19

negatively skewed (< - 1) use MEDIAN

Question 20

between -1 & + 1 or anything +0/-0

Answer 20

Relatively symmetric use MEAN

Question 21

For symmetric distributions, the mean, median, mode almost coincide USE ___ Instead

Answer 21

MEAN

Question 22

Decision & Outcome process (6)

Answer 22

Data > Analysis > Insights > Decision > Action > Outcome

Question 23

is a measure that captures the typical user’s experience.

Answer 23

MEDIAN

Question 24

3 ways to get Typical value

Answer 24

Range
Measure of central tendencies (Mean, median, mode)
Skewedness

Question 25

center/middle value

Answer 25

typical value (mean)

Question 26

It shows the dispersion/spread of ur data within the data sets.

Answer 26

range

Question 27

It contains all data use have in a particular sets/column highlighted.

Answer 27

range

Question 28

To describe what kind of distributions of the data is this.

Answer 28

skewedness

Question 29

Using Skewness, we can now determine what the typical value of data is. And we will use ANY OF MEASURE OF TENDENCIES to determine the typical value.

Answer 29

True