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Topic: ARITHMETIC MEANclass: 9

Lets start module1Programmed Instructional material

ObjectivesAt the end of this module you will be able to-To know about arithmetic meanTo know about the arithmetic mean of a variable from raw dataTo know about the importance of arithmetic meanLets start module2

ARITHMETIC MEAN The term arithmetic mean is preferred in some contexts in mathematics and statistic because it helps distinguish it from other means , such as the geometric mean and the harmonic mean.The arithmetic mean is used frequently in fields such as economics , sociology and history, and it is used in almost every academic field to some extent.

Lets answer some questions3

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For example; per capita income is the arithmetic average income of a nations population.The arithmetic mean is defined as being equal to the sum of the numerical values of each and every observation divided by the total number of observation.MEAN=Lets answer some questions4

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Q:1 Which term preferred in some contexts in mathematics and statistics?: Geometric mean: Arithmetic mean: Harmonic mean

BCA5

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Hint!6

Oops! Wrong AnswerClick Here to attempt the question againHint! Sum of all observation Total no. of observation

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Q:2 The is used frequently in fields such as economics, sociology and history?: Arithmetic mean : Integers: Trigonometry

BCA9

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Hint!10

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Sum of the numerical values of each and every observation divided by the total number of observation.

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Q:3 Arithmetic mean is used in almost every fields to some extent.: Non- academic: Science: Academic

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Hint!14

Oops! Wrong AnswerClick Here to attempt the question againHint!Non academic : dance, games, music etc.Science: practical, lab etc.Academic : class room, tables , chairs etc.

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Q:4 Which income is the arithmetic average income of a nations population?: Per capita: Annual: Total

BCA17

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Hint!18

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Q:5 Arithmetic Mean=21

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Example: 2+4+3+5 4 = 14 4 = 3.5 23

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Congratulations you have Scored 50 marks!

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