TS ICET 2019 Question Paper Shift-2 (23rd May)

Instructions

For the following questions answer them individually

TS ICET 2019 Shift-2 (23rd May) - Question 141


The arithmetic mean of 10 observations is 48. If two more observations 65 and 75 are added to the data. then the arithmetic mean of the entire data of 12 observations is:

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TS ICET 2019 Shift-2 (23rd May) - Question 142


The median of first 2n natural numbers is

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TS ICET 2019 Shift-2 (23rd May) - Question 143


Fora data the medianis 53.5 and the meanis 53.8. Then mode of the data is

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TS ICET 2019 Shift-2 (23rd May) - Question 144


The standard deviation of first 25 natural numbers is

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TS ICET 2019 Shift-2 (23rd May) - Question 145


The variance of first n natural numbers is

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TS ICET 2019 Shift-2 (23rd May) - Question 146


If the sum of squares of the deviations of ranks of two players in n sports is $$\frac{2n(n + 1)}{3}$$, then the coefficient of rank correlation is

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TS ICET 2019 Shift-2 (23rd May) - Question 147


If A and B are two events in a random experiment with the probabilities $$P(A) = \frac{3}{8}, P(B) = \frac{1}{3}$$ and $$P(A \cap B) = \frac{1}{4}$$, then $$P(\overline{A} \cap \overline{B}) =$$ Here $$\overline{A}$$ is the complementary event of A

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TS ICET 2019 Shift-2 (23rd May) - Question 148


If a numberis selected at randomout of the first 120 natural numbers, then the probability that it is a composite number is

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TS ICET 2019 Shift-2 (23rd May) - Question 149


If three vertices are selected at random fromthe vertices of an octagon, then the probability that no two of their three vertices are adjacent to each other is

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TS ICET 2019 Shift-2 (23rd May) - Question 150


If four boys and five girls sit in a row at random, then the probability that all boys sit together is

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