Road rambler sells specialty running shoes and apparel through catalogs and the web. customers can phone in orders at any time day or night, 7 days a week. during the 4 a. m. to 8 a. m. shift, a single sales rep handles all calls. during this time, calls arrive at a rate of 14 per hour following a poisson distribution. it takes the sales rep an average of four minutes to process each call. the variability in service times is approximately exponentially distributed. all calls received while the sales rep is busy are placed in a queue.

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

just keep asking questions until you have a better understanding.

step-by-step explanation:

sorry i got nothing

step-by-step explanation: