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From actuary taples, Washington 2 gten nsurance aty
』 age 25 wi qie within the next year is
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25-year-ojg men this year' whatis the probabilty
3 JjnaPoisson distributionn 三0.4
a. What is the probapility thatx三0
b. What is the probability thatx > 0?
32. 全a Poisson distributionh 二4
a. What is the probapbility thatx 三 2?
b. What js the probapbiljty thatx 生 2?
f experience,
c. What js the probability thatx> 2? m her years ol
還 officer at Coast Bank and Trust. Fro ble to repay
9 inot bea
she estimates that the probability is .025 that an applicant wi
hs or her jnstajiment loan. Last month she made 40 1
父 What js the probability that three loans will be 和 sfaulted?
紀 What js the probability that at least three loans will be del tthe rate oftwo per
Automobijles arrive at the Elkhart exit ofthe Indiana Tol 同 ibution
minute. Tne distribution of arrivals approximates a Poisson distri 了人
a.- What is fhe Probabifity that no automopbiles arrive in a particular uiar
Pp. what js fhe Propabjlity that at least one automobile arrives during
mrnute?
5 站5 estimated that 0.5% ofthe Callers to the Customer Service department of Dell
Jnc. wil receive a busy signal. whatis the probability that oftoday's 1,200 callers at
reast 5 received a Pbusy signal?
。 生如e past schools jn Los Angeles Couni
year for weafher enmergencies. What is 1
Counfy wi close for 4 days next year?
24
ty have closed an average of 3 days each
he probability that schools in Los Angeles
opapjlity distribution js a !ting
apjjty associated wjth each Out(
discrete propapjjity distribution can aSsume only certain values. The main features are:
_The sum offhes probabilties is 1.00.
The probapijlity ofa particular outcome is between 0.00 and 1.00.
Jheoutcomes are mutually exclusive.
ontinuous djsfribution can assume an jmfnite number ofvalues within a speecsi
iean and variance ofa probability distribution are Computed as follows,
mean js equalto:
Come-
ific rang
variance js egqual to: