A researcher computed the mean , median and standard deviation for a set of performance score . If 5 were to be added to each score , which of these three statistics would change ?

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Job Solution Bangladesh Bank Bangladesh Bank - Assistant Director - 2011 গণিত
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If 3/p = 6 and 3/q = 15 then p-q = ?

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Two pipes A and B can fill a tank in 20 and 30 minutes respectively . If both the pipes are used together , then how long will it take to fill the tank ?

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A sum of TK. 53 is divided among A, B, C is such a way that A gets TK. 7 more than what B gets and B gets TK. 8 more than what C gets. The ratio of their shares is :

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The ratio of the number of red balls , to yellow balls , to green balls in an urn is 2 : 3 : 4 . What is the probability that a ball chosen at random from the urn is a red ball ?

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The selling price of 8 apples is equal to the purchase price of 10 apples ? What is the profit margin ?

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