Question
In the question below, four sentences are given which
may or may not contain an error. Choose the one that is grammatically correct and meaningful. If all the sentences are correct, mark 'All are correct' as your answer.Solution
B is wrong - the singular noun 'means' is the correct word to be used. C is wrong - here the adjective 'most' is the correct word to be used in order to modify the noun 'people'. D is wrong - to modify the noun 'control', an adjective is needed hence 'social' is the correct form of the word. A is grammatically correct and meaningful. Hence, option A is the correct answer.
If the first quartile of data set 8,10,8,7,9 is 7.5, then the value of quartile deviation is
Let (Xi, I ≥ 1} be independent and identically distributed random variables with P(Xi =1) = p = 1-P(Xi = 0), Sn = ∑ni = 1 X i . The dist...
If the random sample of size n is drawn without replacement from a finite population of size N, the correction factor for standard error of sample mean...
If A and B are manually exclusive events such that P(A)P(B) > 0 , then which option is correct?
From standard pack of 52 cards, 3 cards are drawn at random without replacement. The probability of drawing a king, a queen and a jack in order is
Five persons A, B, C, D and E occupy seats in a row at random. The probability that A and B sit next to each other is:
For a random variable x, the central moments (µi) of all order exist. The square of (2j + 1)th moment (µ22j+1) is
If A,B and C are arbitrary events, then P(A ∩ B ∩ C) equals to:
The mean and median of the distribution is 12 and 15. Then the mode equals to:
Which of the following is an example of using a sample to make inference about a population?
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