Question

- Prove
that
Sino-asins ca & tance
2 cas 3 4 - Caso
It cot a = 57, show
JI
coseca - sec² 0 : 3
cosic? otse do 4
The Marks of 80 students of class X un
Mathematics test are quien below. Find the
mode of these marks, obtained by the
students in Maths Test
Marks I. eequency
0-10​

Answer 1

Answer:

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Step-by-step explanation:

Here the maximum frequency is 20, and the class corresponding to this frequency is 50 – 60 is the modal class

Therefore, l = 50, h = 60 – 50 = 10, f1 = 20, f0 = 13, f2 = 5

Mode = l + [(f1- f0) / (2f1- f0 - f2)] ×h

= 50 + [(20–13)/(2 × 20–13–5)]×10

= 50 + [(7)/(5/40 -18)] × 10

= 50 + [(7×10) / 22]

= 50 + 70/ 22

= 50 + 3.18

= 53.18

Hence, the mode of the marks obtained by the students in science is 53.18

MODE:

Mode is that value of the given observation which occurs most frequently.

Mode = l + (f1-f0/2f1-f0-f2) ×h

l = lower limit of the modal class

h = size of the class intervals

f1 = frequency of the modal class

f0 = frequency of the class preceding the modal class

f2 = frequency of the class succeed in the modal class.

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