Statistics Test...

The marks of the students of a class who appeared for a test in English are represented in the following frequency table:

The median of three positive integers, no two of which are equal, is $$5$$. What is the least possible value of the arithmetic mean of these integers?

The mode of the following series is 36. Find the missing frequency in it

Find the mode of the following data

If the ratio of mean and median of a certain data is $$5:7$$, then find the ratio of its mode and mean.

What is the median of the ages of minor children?

For a grouped data, modal class is $$22-29.$$ If $$2f_0=f_1=3f_2$$ then Z=......,

If a variable takes the discrete values $$\alpha  + 4,\,\,\alpha  - \frac{7}{2},\alpha  - \frac{5}{2},\alpha  - 3,\alpha  - 2,\alpha  + \frac{1}{2},\alpha  - \frac{1}{2},\alpha  + 5\left( {\alpha  > 0} \right).$$ then the median is:

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The median and S.D of a distribution are 20 and 4 respectively. If each item is increased by 2, the new median are S.D are: