TS ICET 2018 Shift 2

Instructions

For the following questions answer them individually

Question 141

The arithmetic mean of 287, 292, 297, 302, ...... 447 is

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Question 142

If the mean and mode of a data are 58 and 52 respectively. Then the median of the data is

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Question 143

The mode of 124, 142, 86, 136, 126, 124, 98, 114 is

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Question 144

The standard deviation of any five consecutive positive integers is

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Question 145

The standard deviation of n observations $$x_1, x_2, ..... .... ...., x_n$$ is 15. Then the standard deviation of the observations $$5x_1 - 11, 5x_2 - 11, ..........., 5x_n - 11$$ is

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Question 146

Two sports persons P and Q have participated in four competitions and their respective ranks are as give in the table below. The rank correlation coefficient is

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Question 147

A bag contains 3 white, 2 black and 4 red balls. Three balls are drawn in succession Without replacement. The probability that of the three balls drawn one is white, one is black and one is red, is

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Question 148

Two unbiased six faced dice are rolled. The probability of getting a sum which is a prime number is

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Question 149

When 4 un-biased coins are tossed, the probability of getting at least 2 heads is

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Question 150

If a four digit numberis formed at random using the digits 2, 5, 7, 8, 9 then the probability that the sumof the digits in that numberis a multiple of 2 is

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