Answer:
Step-by-step explanation:
What I would do is convert everything to have a denominator of 10 so it could be easier to add.
6 would equal 60/10
7 would equal 70/10
2/5 would equal 4/10
now add all together
60/10 + 70/10 + 4/10 +9/10 and you get 143/10. If you wanted to simplify you would get 14 3/10 or 14.30
1 2/5 because you subtract those two and then you get 1 2/5
Answer:A)54 farms
B) 16 farms
Step-by-step explanation:
Y(1200) = (1200-1400)/100 = -200/100
Y(1200) = -2
Y(1600) = 1600-1400)/100
Y(1600) = 200/100 = 2
P(1200-1600) = (2y<-2)
2 standard deviation from the range = 68%=0.68
80 farms × 0.68 = 54 .4 approximately 54
B) 24× 0.68= 16.32 approximately 16