Runs scored by a batsman in four matches are 27, 83, 64 and 56. If he scores 75 runs in fifth match, then his average score will

The following bar graph shows the rainfall at selected locations in certain months.

Which of the following statements is correct?

A variate takes $13$ values which are arranged in ascending order of their magnitudes. It is found that $5th, 7th$ and $8th$ observations are $4, 6$ and $9$ respectively. What is the median of the distribution?

From a series of $50$ observations, an observation with value $45$ is dropped but the mean remains the same. What was the mean of $50$ observations?

The average of the marks in Maths of $100$ students in a class was $72$. The mean of marks for boys was $75$, while their number was $70$. The mean of marks of girls in the class was

If the median of $\frac{x}{5},x,\frac{x}{4},\frac{x}{2}$  and $\frac{x}{3}$ where $x>0$ is $8$, then the value of $\frac{x}{2}$ would be

The mean of $10$ numbers is 7. If each number is multiplied by 12, then the mean of new set of numbers is

The probability of the event "A new born child will be a girl" is