For the following questions answer them individually
The arithmetic mean of 68, 76, 64, 56, 48, 38, 44, 42 is
The arithmetic mean of the following frequency distribution is
The arithmetic mean of 13 quantities is 60. If the mean of the first 7 quantities 59 and that of the last 7 is 61, the seventh quantity is
The median of data containing 11 observations is 15 . If 8 more observations 32, 33, 6, 9, 8, 2, 19, 17 are added to the data then the median of the new data containing 19 observations is
The Median of 10, 11, 20, 1.5, 19, 20, 14, 16 is
The mode of 16, 22, 24, 18, 16, 19, 15 is
The mode of the following frequency distributions nearly
A coin is tossed n times. If the probability that head occurs a times is equal to the probability that tail occurs b times, then n is
Two dice are thrown. The probability of getting the sum 9 is
If seven persons are to be seated in a row, then the probability that two particular persons sit next to each other is