Question

Recently the half-yearly examination was conducted in DAV public school. The mathematics
teacher maintains a record of the marks of 100 students. On the basis of the recorded data of
the marks obtained in Mathematics, the histogram is given below:
On the basis of the above histogram, answer the following questions:
i. Identify the modal class from the given graph.
a. 80 - 100
b. 20 - 40
c. 60 - 80
d. 40 - 60
ii. Find the mode of the distribution of marks obtained by the students in an examination.
a. 78
b. 68
c. 48
d. 58
iii. Given the mean of the above distribution is 53, using empirical relationship estimate the
value of its median.
a. 78
b. 68
c. 48
d. 58
iv. The construction of the cumulative frequency table is useful in determining the
a. Median
b. Mean
c. Mode
d. All of the above
v. What will be the upper limit of the modal class?
a. 100
b. 80
c. 40
d. 60

Answer 1

Answer:

Step-by-step explanation:

i) c.60-80

ii) b. 68

iii) d. 58

iv) a. median

v) b. 80