Question

The marks obtained byreo ustudents of a class in an examination are given below. Present the
data in the form of a frequency distribution using equal class-size, one such class being 10
15 (15 not included).
3. 20, 13, 1, 21, 13, 3, 23, 16, 13, 18, 12, 5, 12, 5, 24, 9, 2, 7, 18,
10, 12, 7, 18, 2, 5, 7, 10, 16, 8, 16, 17, 8, 23, 21, 6, 23, 15
20, 3,

Answer 1

Step-by-step explanation:

3x−8/x=2

Let us simplify the given equation,

By taking  LCM and cross multiplying

3x2−8=2x

3x2−2x−8=0

By factorizing, we get

3x2−6x+4x−8=0

3x(x−2)+4(x−2)=0

(x−2)(3x+4)=0

So, 

(x−2)=0 or (3x+4)=0

x=2 or 3x=−4

x=2 or x=−4/3

∴ Value of x=2,−4/3

Answer 2

Answer:

We know that the minimum observation is 1 and the maximum observation is 24. So the classes of equal size which covers the given data are 0-5, 5-10, 10-15, 15-20 and 20-25 Frequency distribution table Class Frequency 0-5 6 5-10 10 10-15 8 15-20 8 20-25

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Step-by-step explanation:

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