In an area of the Great Plains, records were kept on the relationship between the rainfall (in inches) and the yield of wheat (b
ushels per acre). Calculate the linear correlation coefficient. Round to three decimal places.
Rainfall (in inches), x 11.7 10 14.6 13.7 20 11.5 8.2 16.8 17.2
Yield (bushels per acre), y 54.5 50.2 62.8 63 86.4 53.2 35.9 80 82.8
Options:
A. 0.998
B. 0.900
C. 0.899
D. 0.981
Rainfall (in inches), x 11.7 10 14.6 13.7 20 11.5 8.2 16.8 17.2
Yield (bushels per acre), y 54.5 50.2 62.8 63 86.4 53.2 35.9 80 82.8
Options:
A. 0.998
B. 0.900
C. 0.899
D. 0.981
1 answer:
Answer: D. 0.981
Step-by-step explanation:
Step 1: For the given data table on x^2
We square all values given to us
Step 2: we repeat Same for Y^2 table too.
Step 3: XY table we multiply x and y
Step 4: we make a summation of them all
Step 5: we input our summer value into our formula.
Step 6 : we arrive at our answer which is 0.981
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they're at a 3:1 ratio, thus, 3 times.
Answer:
The investment after 5 years is $ 662.45.
Step-by-step explanation:
Principal, P = $ 600
Time, t = 5 years
Rate of interest, R = 2 %
Time , t = 5 years
The amount after the time 5 years is
So, the investment after 5 years is $ 662.45.