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Eddi Din [679]
3 years ago
10

PLEASE HELP REALLY FAST!!! 18 POINTS!!

Mathematics
1 answer:
Sati [7]3 years ago
8 0

Answer:

30.5

0<h<10 =5

10<h<20 =15

20<h<30 =25

30<h<40 =35

40<h<50 =45

50<h<60 =55

multiply by frequency

5*1=5

15*4=60

25*7=175

35*2=70

45*3=135

55*3=165

add

=610

610 divided by 20 =30.5

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