If the lower and upper limits of a class are 20 and 30 respectively, then the midpoint of the class is _________.

25.0

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25.5

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24.5

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None of them

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Solution

The correct option is B $25.0$
Given that, the lower limit of the class is $20$ and the upper limit is $30$ .
To find out: Midpoint of the class.
We know that,
$Midpoint = \frac{upper limit + lower limit}{2}$

$∴ Midpoint = \frac{30 + 20}{2} = \frac{50}{2} = 25$

Hence, the midpoint of the given class is $25.0$ .

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Similar questions

The class midpoint is equal to:

(a) The average of the upper class limit and the lower class limit.

(b) The product of upper class limit and the lower class limit.

(d) None of the above.

Q. Given a class L1-L2, where L1 and L2 are the lower and upper limits of the class respectively, what would be the midpoint?

Fill in the blanks :
(i) Lower class limit of 15-18 is ___ .
(ii) Upper class limit of 24-30 is ___.
(iii) Upper limit of 5-12.5 is ___.
(iv) If the upper and the lower limits of a class interval are 16 and 10; the class interval is ___.
(v) If the lower and the upper limits of a class interval are 7.5 and 12.5; the class interval is ___.

Class mark of a certain class interval is 30 and its lower class limit is 20. Then its upper class limit is

Q. The lower limit and upper limit of an exclusive class interval are

15

and

25

respectively. Then the class mark is _____

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If the lower and upper limits of a class are 20 and 30 respectively, then the midpoint of the class is _________.

The correct option is B 25.0Given that, the lower limit of the class is 20 and the upper limit is 30.To find out: Midpoint of the class.We know that,Midpoint=upper limit+lower limit2∴ Midpoint=30+202=502=25Hence, the midpoint of the given class is 25.0.