Question

A telemarketer makes six phone calls per hour and is able to make a sale on 30 % of these contacts. During the next two hours, obtain:

1. The probability of making exactly four sales. (Round the final answer to 4 decimal places.)
2. The probability of making no sales. (Round the final answer to 4 decimal places.)

3. The probability of making exactly two sales. (Round the final answer to 4 decimal places.)

4. The mean number of sales in the two-hour period. (Round the final answer to 1 decimal place.)

Answer 1

nonnial distgo bution S, Tre prve er汀ty mass function c fa ben of Suesses, xis the numbenof tvails, andTT s et xbe the rumben ofsales Let tre tta umbn of Sales be etxoltos abromialdistikution wich pasra mets 12 aTT-o.30 evac o 1onn, ondo 30 foerTr in equation . Tt in equation c) 2-4 -ti -LBINOMpistu,12,0, 3,0 [Excel function Fogmula] 0.231 Cs Scanned with CamScanner

Find the pobabilRty of moirg noseles (o.30) -o. 30) C) Find the paobabily of making eacty tuo Sols Subst워 ute 2 fognx, 12 foh n and0.30 fog TT on e9uatoonG). P(x-2): P2) 2. 21 12-2)1 = E BINOMDIST(2,12,0-3o)] [Excel Functionfogmuli] 0S)m o. 16 d) 'The fogmula fogn the mean of the onom%| d?stsẵbufonts e) find the mean numben of Salesin the two-housnpesniod Н-12 (0.3) -3,6. e the mean cs canned with CamScanner s3.6