Subject Experts Solutions for Chapter: Data Handling, Exercise 2: WORKSHEET

If the median of the following $11$ observations is $16$, find $\mathrm{x}$.
$6,$ $8,$ $9,$ $13,$ $15,$ $\mathrm{x},$ $18,$ $21,$ $21,$ $22,$ $25.$

The mean of $5$ observations is $3$ and if one more observation is added, the mean becomes $3.5$. Find out the value of the new observation.

The mean of $5$ observation is $14$. If one of the observations is wrongly read as $10$ for $30$, then find out the correct mean.

Find the mode and median of the data:

$6,$ $15,$ $120,$ $50,$ $100,$ $80,$ $10,$ $15,$ $8,$ $10,$ $15.$

Write the final answer as the sum of mode and median.

The following dual bar graph represents performance of Prateeksha in 1^st term and 2^nd term. 

In which subject, has she improved the most

The following dual bar graph represents performance of Prateeksha in 1^st term and 2^nd term. 

In which subject her improvement is the least?

The following dual bar graph represents performance of Prateeksha in 1^st term and 2^nd term.

In which subject has the performance gone down?

The following dual bar graph represents performance of Prateeksha in 1^st term and 2^nd term. In which subject the highest marks are scored in term 2?