Mount Natural is a pharmaceutical company that has the opportunity to invest in one of two investments, Naturemaderx and Medimpact. Each investment costs R$100000.$ Financial analysts predict the following possible outcome for the two investments:

Outcome

Probability

Naturemaderx expected return

Medimpact expected return

Pessimistic

$0,20$

$4\%$

$8\%$

Most likely

$0,60$

$10\%$

$12\%$

Optimistic

$0,20$

$16\%$

$16\%$

You are required to calculate the range of returns for the two investments.

$1.$

Naturemaderx: $4\%$; Medimpact: $2\%$

$2.$

Naturemaderx: $6\%$; Medimpact: $6\%$

$3.$

Naturemaderx: $8\%$: Medimpact: $12\%$

$4.$

Naturemaderx: $12\%$; Medimpact: $8\%$