step deviation method step by step please answer me please
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in 12 houses there are 10 -20 plants, in 16 house there are 20-30 plants, in 8 house there are 30 40 house , in 6 houses there are 40 '50 houses , in 8 houses there are 50-60 house
Step-by-step explanation:
this shows every colony have 10 plants increasing
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Answer:
31.4
Step-by-step explanation:
CI. f. x. d. fd
10-20. 12. 15. -1. -12
20-30. 16. A=25. 0. 0
30-40. 8. 35. 1. 8
40-50. 6. 45. 2. 12
50-60. 8. 55. 3. 24
f=50. fd=32
Mean= A+ (fd/f)×i
= 25+(32/50)×10
= 31.4
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