Question

Q7) Construct the graph.
1) Draw a histogram with the help of the given data and answer the questions that
follow;
FREQUENCY
8
5
6
3
CLASS INTERVAL
20-30
30-40
40-50
50-60
60-70
70-80
80-90
90-100
TOTAL
4
5
4
3
38
a) Find the class width.
b) Find the lower limit of the class interval 40-50.
c) Which interval has maximum frequency?
d) Find the frequency of class interval 40-50.​

Answer 1

Answer:

oh write properly ....................

Answer 2

Answer:

To create a frequency polygon, start just as for histograms, by choosing a class interval. Then draw an X-axis representing the values of the scores in your data. Mark the middle of each class interval with a tick mark, and label it with the middle value represented by the class.