Insert the missing number.

Q.

Simplify:

(i)

(ii)

(iii)

(iv)

Q. Fill in the blanks with the missing numbers.
___, ___, 44, 45, 46, 47

Q. Which of the following histograms correctly represents the given data?
Marks obtained by 25 students:
{12, 15, 16, 16, 18, 20, 25, 25, 26, 30, 33, 34, 35, 36, 38, 40, 42, 43, 43, 44, 45, 46, 48, 49, 50}

Figure 1:


Figure 2:

Q. Amelia was feeding the data points of a data set as follows:

$46$	$25$	$23$	$24$	$6$
$4$	$3$	$21$	$25$	$42$
$25$	$12$	$24$	$23$	$23$

She mistakenly entered the number $42$. Given that the data set is trimodal data, the correct value in place of $42$ is .

Q. What is the range of the data : $48,65,27,23,44,41,25,70,49$ ?