example problem of mean mode median
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please use RS aggarwal or RD Sharma
there are many problems related of mean mode median.
if you are studying in class 9 and 10.
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The following data gives the information on the observed life times (in hours) of 150 electrical components
find mean, mode and median
life time on hrs _ frequency
0-20 - 15
20-40 - 10
40-60 - 35
60-80 - 50
80-100 - 40
try this and also less than type and more than type of data
u can go through RD sharma best for class 10 cbsc
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