Investment Returns: Frequency Table and Mean Return
Investment Returns: Frequency Table and Mean Return
Secondary 2
The returns, in percentage, of some financial investments in a year by some financial portfolios are shown in the table below.
Returns (%) | \(-10\) | \(-5\) | \(0\) | \(5\) | \(10\) |
|---|---|---|---|---|---|
Number of portfolios | \(5\) | \(2\) | \(3\) | \(4\) | \(3\) |
Calculate
- the total number of portfolios,
- the sum of the numerical percentage returns across the portfolios,
- the mean return, in percentage, of financial investments by the portfolios.
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Answer:(a) \(17\). (b) Sum \(-10\) percentage points. (c) \(-10/17\%\), the equally weighted mean.
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