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MCGROW HILL PUBLICATION-STATISTICS -MULTIPLE CHOICE QUESTIONS
- If M= (x(1)+x(2).....+x(20))/(20) then the value of sum(i=1)^20((xi-...
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- Arithmetic mean of first n natural numbers is "".
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- The arithmetic mean of the squares of the first n natural numbers is
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- A school has "20" teachers,one of them retires at the age of 60years a...
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- The mean of the following distribution is {:("Class",0-5,5-10,10-15...
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- The ages (in years) of a family of 6 members are 1, 5, 12, 15, 38 and ...
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- The mean of the series a, a + d, a + 2d, …, a + 2 nd, is
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- If each observation is multiplied by 1/3 then the mean of the new data...
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- The mean of first 10 natural numbers.
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- The value of sum(i=1)^(n) (x(i)-barx) where is the arithmetic mean...
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- The average of 15 numbers is 18. The average of first 8 is 19 and that...
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- The attendance of a class of 45 boys for 10 days is given as 40, 42, 3...
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- The average of n numbers x(1),x(2), …,x(n) is M. If x(n) is replaced b...
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- A candidate obtained the following percentage of marks in an examinati...
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- A student obtained the following marks per centage in an examination E...
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- A contractor employed 18 labourers at Rs 12 per day, 10 labourers at R...
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- In a class test in English 10 students scored 75 marks, 12 students sc...
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- Find the mean of first five prime numbers
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- The algebraic sum of the deviations of a set of value of a data from t...
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- A train travels first 300 km at an average rate of 30 km per hour and ...
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