3. (Expectation) A box contains n tickets, numbered 1,2, ..., n. A ticket is drawn at random from the box, its number is registered, and the ticket is
returned to the box. Another ticket is drawn at random from the box, again
its number is registered, and the ticket is returned to the box. This procedure
is repeated until first such moment T when all n numbers have been registered.
Obviously, the moment T can be represented as the following sum
T=T + T2 + T2 + ... + In,
where Ti = 1 is waiting time till the first “new” number is obtained; T2 is the
waiting time till another “new” number is obtained, i. e., a number different
from the previous one; T3 is the waiting time till yet another "new" number
is obtained, different from the previous two; etc.
a) What is the distribution of i) T, ? ii) T; ? iii) Tn?
b) Find the expected value ET.

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98

i am not sure :

step-by-step explanation:

answer: can you give the

step-by-step explanation:

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)