Statistics

Question 1

It is a bunch of Mathematics that deals with the methods of collecting, presenting, analyzing, and interpreting data.

Answer 1

Statistics

Question 2

Data can be described as:

Answer 2

1. Continuous

2. Discrete

Question 3

Types of population

Answer 3

1. Finite population

2. Infinite population

Question 4

Basic ways of gathering data

Answer 4

By counting
By measurement
By questionnaire
Through experiment

Question 5

Basic sampling strategies

Answer 5

Random sampling
Stratified random sampling
Systematic random sampling
Cluster sampling

Question 6

It takes an all real values in an interval or when data is obtained through measurement.

Answer 6

Continuous

Question 7

Data is obtained by counting

Answer 7

Discrete

Question 8

Contains finite no. of members or units

Answer 8

Finite population

Question 9

Infinitely large no. of units and there is no limit to the no. of units it contains

Answer 9

Infinite population

Question 10

Refer to the set of observations on any subject or situation under investigation

Answer 10

Data

Question 11

Refers to the universe from which conclusion of the study must be formed

Answer 11

Population

Question 12

Portion of the universe or population and usually has the same characteristics as the entire population

Answer 12

Sample

Question 13

2 distinct fields of activities in statistics

Answer 13

Statistical method

Mathematical statistics

Question 14

Deals with collecting, organizing, and summarizing data so that valid conclusions may be drawn from it

Answer 14

Statistical method

Question 15

Deals with the formulation and explanation of principles and theories which serve as the basis for the statistical method

Answer 15

Mathematical statistics

Question 16

Importance of Statistics

Answer 16

Statistics is a prime consideration in almost all field like education, business, agriculture, economics, and engineering among others.
Statistics can present facts with preciseness.
Statistics facilitates comparison.
Statistics can be used to predict future events.
Statistics is one of the best tools to formulate and test hypothesis.

Question 17

Arranging data in the form of rows and tables.

Answer 17

Tabular presentation

Question 18

Ways of organizing data

Answer 18

Organization by alphabetical order
Arrangement by rank
Array of data
Organization by frequency distribution

Question 19

It is the difference between the highest and lowest values.

Answer 19

Range

Question 20

Midpoints of the class intervals

Answer 20

Class mark

Question 21

Steps in Constructing Frequency Distribution

Answer 21

1. Determine the range.
2. Decide on the number of classes or class intervals into which the data are to be grouped.
3. Determine the class width.
4. List the lower and upper class limits of the first class interval.
5. List all the succeeding class intervals.
6. Tally data values in each class interval.

Question 22

The quotient of range divided by the number of class intervals.

Answer 22

Class width