A single cashier handles customers that arrive at a bakery. About $39\mathrm{.}9$ customers come into the bakery per hour. It takes $63\mathrm{.}4$ seconds to serve each customer $($standard time$).$ What is the utilization of the cashier?

a$.$

$56\mathrm{.}24\%$

b$.$

$63\mathrm{.}3\%$

c$.$

$100\mathrm{.}0\%$

d$.$

$70\mathrm{.}3\%$

e$.$

$57\mathrm{.}5\%$

Question $2$

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What is the probability there are no customers in line or at the cashier?

a$.$

$26\mathrm{.}7\%$

b$.$

$35\mathrm{.}6\%$

c$.$

$29\mathrm{.}7\%$

d$.$

$0\%$

e$.$

$28\mathrm{.}2\%$

Question $3$

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What is the probability there are less than $2$ customers waiting?

a$.$

$20\mathrm{.}9\%$

b$.$

$35\mathrm{.}6\%$

c$.$

$31\mathrm{.}3\%$

d$.$

$65\mathrm{.}3\%$

e$.$

$16\mathrm{.}7\%$