Question

The table below shows the relative investment in alternative energy sources by type. One column shows the relative investment in $2007$ of $\$75$ million total invested in alternative energy. The other column shows the projected relative investment in $2017$ given current trends. The total projected investment in alternative energy in $2017$ is $\$254$ million.

	Actual $2007$ Investment	Projected 2017 Investment
Biofuels	0.310	0.34
Wind	0.40	0.32
Solar	0.27	0.30
Fuel Cells	0.02	0.04
Toatl	1.00	1.00

Based on the information in the table, if an investment was made in alternative energy in $2007$, what is the probability that the money was invested in wind resources?

• A. $\frac{1}{25}$
• B. $\frac{3}{10}$
• C. $\frac{2}{5}$
• D. $\frac{3}{5}$

Answer 1

Answer: (C)

$\frac{2}{5}$

Given that in $2007$ total investment is $\$75$ in alternative energy.

As per table given the actual investment in wind resources is $0.40$.

Then total investment in wind resources $=$ $0.40\times 75=$30$.

And total investment is $\$75$.

Then, probability that the money was invested in wind resources $=$ $\frac{40}{75}=\frac{2}{5}$.