R. D. Sharma Solutions for Chapter: Data Handling – II (Central Values), Exercise 5: OBJECTIVE TYPE QUESTIONS

If the mean of $9,10,15, x, 6,8$ and $12$ is $11$. The median of the observations is

The mode of the unimodular data $7,8,9,8,9,10,9,10,11,10,11,12$ and $x$ is $10$. The value of $x$ is

The mean weight of $21$ students is $21 \mathrm{kg}$. If a student weighing $21 \mathrm{kg}$ is removed from the group, then the mean of the remaining students is

There are $7$ observations in the data and their mean is $11$. If each observation is multiplied by $2$, then the mean of new observations is

The mean of $10$ observations is $15$. If one observation $15$ is added, then the new mean is

If the median of $10,12, x, 6,18$ is $10$, then which of the following is correct.

The mode of the data $9, x, 6,3,4,9,8,6,4,6$ is $6$. Which of the following cannot be the value of $x$?

Which of the following is correct?