Chapter 4.5, Problem 92E

(a)

To determine

To calculate: The probability that chosen person will recall $0\%\text{ and 25\%}$ of the material, where probability is $P_{a,b}={\displaystyle {\int }_a^b\frac{1155}{32}{x}^3{\left(1-x\right)}^{\frac{3}{2}}dx}$

(b)

To determine

To calculate: The probability that chosen person will recall $50\%\text{ and 100\%}$ of the material, where probability is $P_{a,b}={\displaystyle {\int }_a^b\frac{1155}{32}{x}^3{\left(1-x\right)}^{\frac{3}{2}}dx}$