TS ICET 28th July 2022 Shift-1
For the following questions answer them individually
In a statistical data 2, 4, 6, 8, 10 occur with frequencies 1, 3, 5, 7, 9 respectively, then the arithmetic mean is
The average age of 4 boys A, B, C, D is 13 years, while the average age of B, C, D is 14 years then the age of A is
The arithmetic mean of a data of 100 observations is 23. If each of the observations is multiplied by 5 and then 2 is added to each observation, then the arithmetk mean of the new data is
A data conSists of the natural numbers of the form 2k + 1 with frequency $$k for 1 \leq k \leq 15$$, then the median of the data is
The arithmetic mean and median of a frequency distribution are 20 and 30 respectively. The mode of this distribution is
While shuffling a pack of 52 playing cards, 2 are accidentally dropped. Then the probability that missing cards to be of different colours is
When 5 boys and 6 girls sit at random in a row, then the probability that boys and girls sit alternatively is
