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Part $1$

The$$ S&P TSX Composite index delivered annual returns of$10\mathrm{.}55\%,$

minus$8\mathrm{.}32\%,$

$21\mathrm{.}08\%$ and$9\mathrm{.}10\%$ from

$20142014$

to

$20172017.$

What is the standard deviation of the index returns over these four$$ years?

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Part $1$

A$.$

$12\mathrm{.}18\%$

B$.$

$131\mathrm{.}67\%$

C$.$

$9\mathrm{.}94\%$

D$.$

$8\mathrm{.}14\%$

E$.$

$7\mathrm{.}27\%$