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Mathematics, 30.12.2020 17:50 vieraml58

The table shows some information about the lifetimes, t, in hours, of some lightbulbs.
Lifetime
Frequency
25 51
50 47
100 34
150 47
200 0
250 50
300 43
Estimate the mean lifetime of a bulb.
Give your answer rounded to 2 DP.

PLZZ HELP !

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The table shows some information about the lifetimes, t, in hours, of some lightbulbs.
Lifeti...
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