Measure of Central Tendency

Question 1

A discipline that deals with the structured approach of gathering, classifying, displaying, assessing, and measuring qualitative and numerical data for successful decision-making

Answer 1

Statistic

Question 2

in this branch of stats, the goal is to describe the data

Answer 2

Descriptive Statistics

Question 3

Descriptive Stats includes?

Answer 3

1. Measure of Central Tendency
2. Measure of Position
3. Measure of Dispersion or variability
4. Measure of Shape

Question 4

This includes correlation and regression analysis

Answer 4

Inferential Statistics

Question 5

Types of Data as to Matter of Presentation

Answer 5

1. Grouped Data
2. Ungrouped Data

Question 6

Data organized into groups like categories or classification.

Answer 6

Grouped Data

Question 7

A set or array of things or observation that has not undergone any classification.

Answer 7

Ungrouped Data

Question 8

is a summary statistic that represents the center point or typical value of a dataset.

Answer 8

measure of central tendency

Question 9

These measures indicate where most values in a distribution fall and are also referred to as the central location of a distribution.

Answer 9

Measure of Central Tendency

Question 10

Overview of Central Tendency

Answer 10

Mean
Median
Mode

Question 11

this is the arithmetic average

Answer 11

Mean

Question 12

Midpoint of ranked values

Answer 12

Median

Question 13

most frequently observed value

Answer 13

Mode

Question 14

Mean

Answer 14

x̅

Question 15

median

Answer 15

x̃

Question 16

mode

Answer 16

x̂

Question 17

To find the mean of the ungrouped data, use the formula:

Answer 17

x = Σχ / n

Question 18

n =

Answer 18

number of cases/data

Question 19

Median (x - “x curl”) The median of an ungrouped data is a rank list of a number;

Answer 19

b.1 The middle number if n is odd
b.2 The mean of the two middle number if n is even

Question 20

Mode (x - “x caret/hat) The most frequent value in the distribution.

Answer 20

Types of Mode
1. No mode- no mode
2. Unimodal - 1 mode
3. Bimodal- 2 modes
4. Trimodal- 3 modes
5. Multimodal-4 or more modes