Math Chapter Wise

EnglishRajasthan TGT 2015

Q321.The median and Standard Deviation (S.D.) of a distribution are 20 and 4 respectively. If each item of the distribution is increased by 2, then

AMedian and S.D. will increase. BMedian will go up of 2 but S.D. will remain same. CMedian will increase but S.D. will decrease. DMedian will decrease but S.d. will increase.

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EnglishRajasthan TGT 2015

Q322.Variance of a distribution is V. If each value of the variance be multiplied by a constant quantity k, new variance is

AV BkV Ck2/V D2kV

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EnglishRajasthan TGT 2013

Q323.Consider the following statements- 1. Area under a histogram gives total frequency. 2. Width of the tallest vertical bar of histrogram gives modal class. Which of the above statements is/are correct?

A1 only B2 only CBoth 1 and 2 DNeither 1 nor 2

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EnglishRajasthan TGT 2013

Q324.If mean and median of a distribution be respectively 9 and 15, then mode of the distribution is-

A24 B18 C33 D27

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EnglishRajasthan TGT 2011

Q325.A matrix X has (a+b) rows and (a+2) columns and matrix Y has (b+1) rows and (a+3) columns. If both XY and YX exist, then

Aa 3,b 2 = Ba 2,b 3 = Ca 2,b 4 = Da 4,b 3 =

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EnglishKVS TGT DEC 2017

Q326.The geometric mean of the numbers 3, 9, 27, 81, 243 is–

A9 B27 C81 D3 3

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EnglishKVS TGT DEC 2017

Q327.The mean and S.D. of 1, 2, 3, 4, 5, 6 is–

A7 35, 2 12 B3,3 C7, 3 2 D35 3, 12

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EnglishKVS TGT DEC 2017

Q328.The mean of first three terms is 14 and the mean of next two terms is 18. The mean of all the five terms is–

A14.5 B15.0 C15.2 D15.6

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EnglishTGT 2011

Q329.Cost of living index number is represented by-

An 0 0 0 p q 100 p q Σ × Σ Bn n 0 0 p q Σ C0 n n n p q 100 p q Σ × Σ DNone of these

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EnglishTGT 2011

Q330.If the mean of two samples of size 30 and 20 are 55 and 60 respectively and the standard deviation is 16 and 25 respectively, then the together is-

A5.00 B5.06 C5.25 DNone of these

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EnglishTGT 2011

Q331.The mode of a distribution can be found by-

ABy histogram B‘less than’ by cumulative frequency curve. C‘More than’ by cumulative frequency curve. DBy frequency polygon.

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EnglishTGT 2011

Q332.Which of the following is not a measure of central tendency?

AMean BMedian CMode DStandard deviation

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EnglishTGT 2013

Q333.Which of the following is not a measure of central tendency?

ARange BMean CMedian DMode

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EnglishTGT 2013

Q334.Find the median of the given data. 31, 37, 43, 42, 25, 46, 45, 39, 32

A25 B42 C46 D39

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EnglishTGT 2013

Q335.If f (x+y, x–y) = xy, then what will be the arithmetic mean of f(x,y) and f(y,x)?

Ax By C0 Dxy

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EnglishTGT 2010

Q336.For what value of x, the mode of the following data is 7? 3,5,6,7,5,4,7,5,6,x,8,7

A5 B6 C7 D12

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EnglishTGT 2009

Q337.Which of the following statements is true? (I) The mode can be calculated from the histogram. (II) The median is not independent of change of scale. (III) The variance is independent of the chage of origin and scale.

AOnly I BBoth I and II COnly II DAll of the above.

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