Summing over tensor dimensions

You've been given a matrix, wealth. This contains the value of bond and stock wealth for five individuals in thousands of dollars.

wealth = $\begin{bmatrix} 11 & 50 \\ 7 & 2 \\ 4 & 60 \\ 3 & 0 \\ 25 & 10 \end{bmatrix}$

The first column corresponds to bonds and the second corresponds to stocks. Each row gives the bond and stock wealth for a single individual. Use wealth, reduce_sum(), and .numpy() to determine which statements are correct about wealth.

Possible answers

The individual in the first row has the highest total wealth (i.e. stocks + bonds).

Combined, the 5 individuals hold $50,000 in stocks.

Combined, the 5 individuals hold $50,000 in bonds.

The individual in the second row has the lowest total wealth (i.e. stocks + bonds).

Exercise

Summing over tensor dimensions

Instructions

Possible answers

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Instructions

Possible answers

Exercise