Question
If ‘P’ means (÷), ‘Q’ means (×), ‘R’ means
(+), and ‘S’ means (-), then what is the value of the expression: 900 P 15 R 26 Q 5 S 94 R 20Solution
900 P 15 R 26 Q 5 S 94 R 20 900 ÷ 15 + 26 x 5 – 94 + 20 60 + 26 x 5 – 94 + 20 60 + 130 – 94 + 20 = 116
Two data sets of sizes 6 and 9 have standard deviation 3 and 4, respectively, and arithmetic means 4 and 4, respectively. The standard deviation of com...

If A and B are manually exclusive events such that P(A)P(B) > 0 , then which option is correct?
For the distribution
X: 1 0 1
P(x): 0.3 ...
A man pedals cycle from his house to his office at a speed of 10 km/h and back from the office to his house at a speed of 15 km/h. His average speed (i...
Which of the following is NOT a type of data classification?
If Z1, Z2,…Zn are n independent standard normal variates, then Σni=1 Z2i will follow:
If the first, second, and third moment about the origin are 2, 8, and 18 respectively, then third moment about mean is
The mean deviation from an average A will be minimum, if A represents:
If the occurrence of events follows Poisson Process with mean rate λ, then inter-occurrence time of events will follow: