Find the mean of the data given below, if following are the marks obtained by students in a class test in the mathematics subject.
Marks: 10 20 30 40 50 60
Number of student 5 12 32 40 45 48

44.5

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43.846

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46.86

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44.96

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Solution

The correct option is B $43.846$
Mean $=$ $\frac{T o t a l m a r k s o b t a i n e d b y s t u d e n t s}{T o t a l s t u d e n t s}$
Mean $=$ $\frac{50 + 240 + 960 + 1600 + 2250 + 2880}{5 + 12 + 32 + 40 + 45 + 48}$
Mean $=$ $\frac{7980}{182}$
Mean $=$ $43.846$
$∴ M e a n = 43.846$

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Find the mean of the data given below, if following are the marks obtained by students in a class test in the mathematics subject.Marks:102030405060Number of student51232404548

The correct option is B 43.846Mean = TotalmarksobtainedbystudentsTotalstudentsMean = 50+240+960+1600+2250+28805+12+32+40+45+48Mean = 7980182Mean =43.846∴Mean=43.846

Find the mean of the data given below, if following are the marks obtained by students in a class test in the mathematics subject.
Marks: 10 20 30 40 50 60
Number of student 5 12 32 40 45 48

The correct option is B $43.846$
Mean $=$ $\frac{T o t a l m a r k s o b t a i n e d b y s t u d e n t s}{T o t a l s t u d e n t s}$
Mean $=$ $\frac{50 + 240 + 960 + 1600 + 2250 + 2880}{5 + 12 + 32 + 40 + 45 + 48}$
Mean $=$ $\frac{7980}{182}$
Mean $=$ $43.846$
$∴ M e a n = 43.846$