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What is the coefficient of mean deviation of 21, 34, 23, 39, 26, 37, 40, 20, 33, 27 (taken from…
NDA Mathematics 2022
NDA 2022
Mathematics
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What is the arithmetic mean of 50 terms of an AP with first term 4 and common difference 4 ?
NDA Mathematics 2022
NDA 2022
Mathematics
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The variance of five positive observations is 3.6. If four of the observations are 2, 4, 5, then what is…
NDA Mathematics 2022
NDA 2022
Mathematics
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The frequency curve (assuming unimodal) corresponding to the data obtained in an experiment is skewed to the left. What conclusion…
NDA Mathematics 2022
NDA 2022
Mathematics
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Two digits out of 1, 2, 3, 4, 5 are chosen at random and multiplied together. What is the probability…
NDA Mathematics 2022
NDA 2022
Mathematics
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Let â and b̂ be two unit vectors such that |â – b̂|² = 2. If 2θ is the angle…
NDA Mathematics 2022
NDA 2022
Mathematics
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Let â, b̂, ĉ be three non-zero vectors such that â × b̂ = ĉ. Consider the following statements :…
NDA Mathematics 2022
NDA 2022
Mathematics
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Consider the following statements : 1.Dot product over vector addition is distributive 2.Cross product over vector addition is distributive 3.…
NDA Mathematics 2022
NDA 2022
Mathematics
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If â, b̂, ĉ are the position vectors of the vertices A, B, C respectively of a triangle ABC and…
NDA Mathematics 2022
NDA 2022
Mathematics
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If 4î + j – 3k̂ and pî + qĵ – 2k̂ are collinear vectors, then what are the possible…
NDA Mathematics 2022
NDA 2022
Mathematics
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If one of the diameters of the circle x^2 + y^2 – 4x + 6y = 12 is a chord of…
NDA Mathematics 2022
NDA 2022
Mathematics
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What are the direction ratios of a normal to the plane 2x + 3y + z = r, if it…
NDA Mathematics 2022
NDA 2022
Mathematics
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The plane 6x + ky + 3z − 12 = 0 (where k ≠ 0) meets the coordinate axes at…
NDA Mathematics 2022
NDA 2022
Mathematics
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The plane 6x + ky + 3z − 12 = 0 (where k ≠ 0) meets the coordinate axes at…
NDA Mathematics 2022
NDA 2022
Mathematics
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The plane 6x + ky + 3z − 12 = 0 (where k ≠ 0) meets the coordinate axes at…
NDA Mathematics 2022
NDA 2022
Mathematics
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If the point (x, y) is equidistant from the points (2a, 0) and (0, 3a) where a > 0, then…
NDA Mathematics 2022
NDA 2022
Mathematics
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What is the equation of the locus of the mid-point of the line segment obtained by cutting the line x…
NDA Mathematics 2022
NDA 2022
Mathematics
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Consider the following grouped frequency distribution: What is the mean deviation about the mean?
NDA Mathematics 2022
NDA 2022
Mathematics
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Consider the following grouped frequency distribution: What is mean deviation about the median?
NDA Mathematics 2022
NDA 2022
Mathematics
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Consider the following grouped frequency distribution: What is the median of the distribution?
NDA Mathematics 2022
NDA 2022