Drawing of Histogram

Q.

Draw frequency distribution table and bar graph for the following data :

Ages(in years) of students in a class:

$14,13,12,13,14,15,13,14,16,15,14,13,12,12,12,13,13,13,13,15,14,14,13,13,12,12,12,15,14,12,12,13,13,14,12,16,$

$16,13,13,12,14,14$

Q. In a farm house, there are $30$ chickens weighing less than $2$ kg, $70$ chickens weighing less than $4$ kg and $90$ chickens weighing less than $6$ kg. Idendtify the correct histogram plot for the same.

1. 
2. 

Q. The number of chickens in a farm house with respect to their weight are as follows:
Weight (kg) Number Chickens

$0\le \text{Weight}<2$	$30$
$2\le \text{Weight}<4$	$40$
$4\le \text{Weight}<6$	$20$

When this data is plotted on a histogram, the height of the bar corresponding to the medium-weight range chickens is units.

Q. 88 equispaced data points are used to plot a histogram. The possible span of each interval is/are -

1. 8 units
2. 11 units
3. 4 units
4. 12 units

Q. Dylan is trying to plot a histogram on his personal computer with 105 data points. If he decides to group 15 data points at a time, the number of rectangular bars he creates is .

Q. When we graph inequalities, the closed circle indicates “_____________”.

1. $\ge$
2. $\ge$
3. $\le$
4. Both A and B