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Jun

(1) Evaluate : (i) $\textup{log} _{5}$ 125 (ii) $\textup{log}&... </p> <div class=$

Posted in: Examples,

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Jun

Antilogarithm

☼ Antilogarithm : If log x = y, then x = Antilog ( y ).

How to Insert Decimal Point ?

▪ Case I : When Characteristic of lo…

Posted in: Antilogarithm, Logarithm,

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Jun

Properties of Logarithms

☼ Properties of Logarithms :

$\textup{log}_{a} (xy) = \textup{log}_{a}\textup{ x} + \textup{log}_{a}\textup... <br /> <div class=$

Posted in: Properties of Logarithms,

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Jun

Logarithm

…

Posted in: Logarithm,

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Jun

Examples 9 to 11

(9) A committee of 4 has to be formed out of 7 boys and 3 girls. Find the probability that it includes at least 1 girl.

Soln. Here, n = $_{10}\textup{C}... </p> <div class=$

Posted in: Examples 9 to 11,

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Jun

Examples 5 to 8

(5) A bag contains 6 red and 4 white balls. Three balls are drawn at random. Find the probability that they are of the same colour.

Soln. Let, A : Event of getting two balls of same colour.

P ( A ) =

Posted in: Examples 5 to 8,

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Jun

Examples

(1) In a throw of a coin, find the probability of getting a tail.

Soln. Here, S = { H, T } ( i.e. n = 2 ) and A = { H } ( i.e. m = 1 ).

$\ther... </p> <div class=$

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Jun

Introduction

☼ Probability : In a random experiment, let S be the sample space and E be the event. Then, E $\subseteq$ S. Then, we define (if m = n…

Posted in: Probability,

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Jun

difference between mutually exclusive events and independent events

☼ Give the difference between mutually exclusive events and independent events.

mutually exclusive even…

Posted in: difference between mutually exclusive events and independent events,

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05

Jun

Event
☼ Event : The result of an experiment are known as events:

e.g. (i) If a coin is tossed head ( H ) and tail ( T ) are two different events.

(ii) 1, 2, 3, 4, 5, 6 are different even…

Posted in: Event,

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