b) The mortality pattern of a certain population may be described as follow:"Out of every 120 lives born together, two dies annually until there are no survivors"i) What is the probability that a person aged 20 will survive to attain age 25?ii) What is the probability that a person aged 30 will die between the ages of 35 and40?

Given the mortality pattern of a certain population as "Out of every 120 lives born together, two…

Answered: b) The mortality pattern of a certain…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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51. A local cab company maintains a fleet of 10 cabs. Each time a cab breaks down, it is repaired the same day. Assume that breakdowns of individual cabs occur completely at random at a rate of two per year. a. What is the probability that any particular cab will run for a full year without suffering a breakdown? b. What is the probability that the entire fleet will run for one month without a breakdown? c. On the average, how many breakdowns would the fleet expect in a typical three- month period?
3. On an average, there are 2 visits to a supershop per minute. What is the probability that the supershop will have 100 customer visits within the next 1 hour?
Each day a veterinary clinic schedules 10 horses to be examined for a respiratory disease. The cost of each test is $80. The probability that a horse has the disease is 0.1. If the horse has the disease, the treatment costs $500. a) What is the probability that at least three horses will be diagnosed with the disease on any given day?b) What is the probability that at most four horses will be diagnosed with the disease on any given day?c) What is the expected profit per day that the clinic makes from examining horses and treating them for this disease?
The probability that any given person will believe a tale aboutlife and death is 0.8. what is the probability that the 6th person tohear it is the 4th one to believe it?
6. On average, 5 customers visit a store every 15 minutes. What is the probability that exactly 7 customers will visit in the next 15 minutes?
Explain properly.Wrong answer will be reported.skip if u don't know.
d) If I choose a customer at random, and it turns out that they are interested in History, what is the probability that they are also interested in Music?e) What is the probability that a customer is interested in Science or Music?
On a veterinary clinic, animal statistics were discussed. One vet told that he read a report that for every 100 stray dogs, there were 20 more male than females. a) If 20 dogs were picked at randomly from a representative group, what is the probability that at least 15 of them would be female? b) What is the probability that one should pick more than 6 male dogs before she finds one female? c) What is the probability that the fifth female dog is obtained in eight or fewer pick?
The chart below summarizes data related to the number of cars stopped for speeding on Route 195. The chart shows whether the driver being stopped was a teenager or older, and whether the result of the stop was a ticket, written warning, or verbal warning. a) For a randomly selected traffic stop, what is the probability that the result of the stop was a ticket? b) For a randomly selected traffic stop, what is the probability that the driver was a teenager and given a written warning? c) For a randomly selected traffic stop, what is the probability that the car stopped was given a ticket or the driver was 20 or older?
1. If probability of a single birth resulting in a boy is 0.321, then what is the probability of it resulting in a girl? 11
According to Wealth committee data, 0.3% of people have anemia. If 2000 people arerandomly selected, find the probability that number of sick people will be a) exactly 1, b)greater than 3.
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