Assertion (A) : The first quartile of the observations 15, 14, 21, 11, 19, 10, 18 is 10. Reason (R) : For an ungrouped data, containing n observations, lower quartile is given by Q1 = th observation, if n is odd. 1. A is true, R is false 2. A is false, R is true 3. Both A and R are true 4. Both A and R are false

Question

KnowledgeBoat · Accepted Answer

Observations arranging in ascending order = 10, 11, 14, 15, 18, 19, 21 Here, n = 7 We know that, If the variates are arranged in ascending order, then the observation lying midway between the lower extreme and the median is called the Lower quartile or First quartile. Q1 = th observation, if n is odd. = = 2. ∴ Assertion (A) is false. For an ungrouped data, containing n observations, lower quartile is given by Q1 = th observation, if n is odd. ∴ Reason (R) is false. Hence, Option 4 is the correct option.

Class	Frequency
0 - 10	2
10 - 20	4
20 - 30	3
30 - 40	5

Mathematics

Measures of Central Tendency

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If the difference between the mode and median of a certain data is 24, then the difference between median and mean is :
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The median class for the given distribution is :
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Mathematics

Measures of Central Tendency

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If the difference between the mode and median of a certain data is 24, then the difference between median and mean is :8122436

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If the difference between the mode and median of a certain data is 24, then the difference between median and mean is :
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12
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36

The median class for the given distribution is :
Class Frequency
0 - 10 2
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