Dear Experts, Please help me solve these statsitic problems with explanation. Ap

Question

Dear Experts,
Please help me solve these statsitic problems with explanation.
Appreciate!

STATISTICS SESSION #7 The Coefficient of Variation Name Date An ETF, or exchange-traded fund, is a marketable security that tracks an index. a commodity, bonds, or a basket of assets like an index fund. Unlike mutual funds, an ETF trades like a common stock on a stock exchange #1. An investor has determined that the two best options for diversification, as well as the ability to sell short are S & P 500 ETF, and iShares ETF. The investor tracked the trading price of these two exchange-traded funds. The results of his research are summarized in the table below COMPARISON OF THE S & P 500 ETF & THE ishares ETF S & P 500 ETF Mean Price Market Index Standard deviation iShares ETF $175 $ 75 $ 80 (A) Determine the coefficient of variation for the prices charged by each firm. (B) Based on the coefficient of variation for the trading prices, select the exchange-traded fund that appears to have greater uncertainty associated with its S & P 500 ETF iShares ETF

Explanation / Answer

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Mean = 145.8

Cov = 2.5%

SD = ?

So,

0.025 = SD/145.8

SD = 3.645

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