Coffee is a leading export commodity for Kenya. When coffee prices are high, far
ID: 3051248 • Letter: C
Question
Coffee is a leading export commodity for Kenya. When coffee prices are high, farmers often clear forests to plant more coffee trees in Kenya. Coffee prices paid to coffee growers in Kenya as percent of forest being lost:
What is: Independant variable:___. Dependant variable:___ 50% Coffee prices is around:___ 75% of coffee prices is higher than:___ 25% of coffee prices is lower than:___
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Price (Cents per pound of coffee) 30 50 40 70 80 75 90 80 Percent of deforestation (forest being lost) 15 25 35 45 50 60 75 65Explanation / Answer
(a) Independant variable:Percent of deforestation (forest being lost)
(b)Dependant variable:Price (Cents per pound of coffee)
Here,
Price after sorting in increasing order are,
30 40 50 70 75 80 80 90
Here,N=8
(c)50% Coffee prices is around=Median Price=Mean of middle two prices=(70+75)/2=72.5
(d)75% of coffee prices is higher than=first quartile=Q1
the lower half of the data is: {30 ,40 ,50 ,70}.
The first quartile, Q1, is the median of {30 ,40 ,50 ,70}.
Q1=(40+50)/2=47.5
(e)25% of coffee prices is lower than=First Quartile=Q1
the lower half of the data is: {30 ,40 ,50 ,70}.
The first quartile, Q1, is the median of {30 ,40 ,50 ,70}.
Q1=(40+50)/2=47.5
Price (Cents per pound of coffee) 30 50 40 70 80 75 90 80