The heights (in cm) and arm spans (in cm) of 31 students were measured. The association between x (height) and y (arm span) is shown in the scatterplot below. The equation of the line of best fit modeling this relationship is y = 4.5 + 0.977x.

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required rate of return = 0.166 = 16.6%

step-by-step explanation:

under the capital asset pricing model (capm), the required or expected rate of return for a particular security or asset is given using the formula:

required rate of return = risk-free rate + beta*(market risk premium)

we are given that;

risk-free rate = 4% = 0.04

beta = 1.4

market risk premium = 9% = 0.09

we simply plug these values into the above formula;

required rate of return = 0.04 + 1.4*(0.09)

required rate of return = 0.04 + 0.126

required rate of return = 0.166 = 16.6%

he earned 78.75 in interest.

step-by-step explanation:

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