For the following questions answer them individually
The mean of the following frequency distribution is
Which one of the following is NOT true?
If the mean and Mode of a data are 9 and 100 respectively, then the Median is
The variance of 1471, 149, 151, 153,...., 183 is
The standard deviation of three consecutive integers is
The rank correlation for the following data is
If A and B are events with P(A) = 0.5, P (B) = 0.4 and P(A $$\cap$$ B) = 0.3, then the probability that neither A nor B occurs is
A problem in statistics is given to three students A,B and C whose chances of solving it independently are $$\frac{1}{2}, \frac{1}{3}$$ and $$\frac{1}{4}$$ respectively. The probability that exactly one of them is able to solve that problem is
In a simultaneous throw of two dice, the probability of getting a total of 10 or 11 is
If the letters of the word MINISTER are permuted at random, then the probability that all three vowels come together is