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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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?
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?
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?
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?
Question 7
1. The probability that a manufactured bulb works properly is 98%. a. In a pack of six, what's the probability that all bulbs work? b. In a pack of six, what's the probability that 4 or less work? c. In a pack of 8, what's the probability that more than 5 work? d. In a pack of 10, what's the probability that exactly half work? In a pack of 4, what's the probability that all are broken?
How would you write a.) The probability that more than 44 crashes occur today b.) The probability that less than 42 crashes occure today c.) The probability that between 42 and 44 crashes occur today
SOLVE STEP BY STEP PLEASE IN DIGITAL FORMAT XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX It was determined that 75% of UNAM students smoke frequently, a sample of 100 students was taken a) What is the probability that the proportion of the sample of students who smoke is less than 0.65? b) What is the probability that the proportion of the sample of students who smoke is greater than 0.65?
All students in a high school were surveyed about two sports. The results are shown in the graph. Frequency 600 400 200 0 190 Sports Survey 565 Basketball 340 Football Like Basketball or Football Both 100 Neither a) How many students were surveyed? b) What is the probability that a student (chosen at random) likes only basketball? Express your answer as a decimal, rounded to 2 decimal places. c) What is the probability that a student (chosen at random) likes both basketball and football? Express your answer as a percentage. d) What is the probability that a student (chosen at random) likes neither basketball nor football? Express your answer as a fraction in lowest terms.
An unreliable company produces a large shipment of blenders where 13% have a defective motor, and 25% have a defective electrical cord and 5% have both defects. If you randomly select a blender in this shipment, find the probability that it has... a) only a defective electrical cord. Write your answer as a percent rounded to 1 decimal place. b) a good motor. Write your answer as a percent rounded to 1 decimal place. c) a good motor and a good electrical cord. Write your answer as a percent rounded to 1 decimal place.
5. On average, there are 2 car thefts every 10 square kilometers during the course of a month in Shanghai. a. What is the probability that there will be no car thefts in a 10 square kilometer area next month? b. What is the probability that there will be 1 car theft in a 20 square kilometer area?
The table below shows the number of deaths in the U.S. in a year due to a variety of causes. For these questions,assume these values are not changing from year to year, and that the population of the United States is 312 millionpeople. Cause of Death in US Cause Number of deaths Passenger car occupant 13,100 Motorcycle driver 4,500 Tornado 553 Skydiving 56 What is the probability that you died as a passenger car occupant last year?

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