Question

define all please find​

Answer 1

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(a) Raw Data

A collection of observations gathered initially is called Raw Data.

(b) Group Data

Data formed by arranging individual observations of a variable into groups, so that a frequency distribution table of these groups provides a convenient way of summarizing or analyzing the data is termed as grouped data.

(c) Observation

Information in the form of numerical figures is called an observation.

(d) Range

The difference between the highest and lowest values of the observation in a given data is called it's range.

(e) Class Mark

The midvalue of a class interval is called it's class mark.

(f) Class size

The difference between the upper limit and lower limit of a class interval is called the class size.

(g) Frequency of a class

The frequency of a class interval is the number of observations that occur in a particular predefined interval.

Answer 2

Raw Data

Data that has not been processed for use.

Group Data

data formed by aggregating individual observations of a variable into groups

Observation

the detection or assertion of a. truth in the context of a mathematical activity

Range

the difference between the largest and smallest numbers.

Class work

schoolwork that is done in class.

Class size

the average number of students per class

Frequency of class

the number of observations that occur in a particular predefined interval

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