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gcse higher maths help (histograms)

for the less/more than or equal to sign, i will use this : >= or <=

garden length (m) ----------frequency

0<L<=5 -------------------------14
5<L<=10 -----------------------12
10<L<=20 ----------------------18
20<L<=35 -----------------------2
35<L<=50------------------------4


calculate an estimate for the mean length of the garden
(edited 6 years ago)
I'm so stressed please help this is online homework due tonight

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