The rainfall (in mm) in a city on 7 days of a certain week was recorded as follows: (i) Find the range of the rainfall in the above data. (ii) Find th

Monjur Alahi

The rainfall (in mm) in a city on 7 days of a certain week was recorded as follows: (i) Find the range of the rainfall in the above data. (ii) Find the mean rainfall for the week. (iii) On how many days was the rainfall less than the mean rainfal


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Salim Ahmed Kawsar

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Correct Answer - (i) 20.5 (ii) 5.9 (iii) 5

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There are 4 routes from city A to city B, 5 routes from city B to city C and 3 routes from city C to city A. Convert the above information into matrix

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Find the median of the data 46,41,77,58,35,64,87,92,33,55,90 In the above data, if 41 and 55 are replaced by 61 and 75 respectively, what will be the

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The temperatures of a city recorded during a week are 42°, 35°, 44°, 33°, 39°, 45° and 42°. The average temperature is 

Correct option is (D) 40° Average temperature \(=\frac{\text{Sum of temperatures in a week}}7\) \(=\frac{42^\circ+35^\circ+44^\circ+33^\circ+39^\circ+45^\circ+42^\circ}7\) \(=\frac{280^\circ}7=40^\circ\)

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The temperatures of a city recorded during a week are 42°, 35°, 44°, 33°, 39°, 45° and 42°. The average temperature is  2 Answers 1 views
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Correct option is (C) 4500 litres Quantity of water = Volume of rainfall \(=6\times5\times0.15\,m^3\) \(=4.5\,m^3\) \(=4.5\times1000\,litres\) = 4500 litres

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On a particular day, the rainfall recorded in a terrace of dimensions 6 m and 5 m is 15 cm. The quantity of water collected in terrace is  2 Answers 1 views