1. In a certain city district, the need for money to buy drugs is given as the reason for 65% of all thefts. What is the probability that exactly 2 of the next 4 theft cases reported in this district resulted from the need for money to buy drugs?

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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Use a Discrete Probability and please write your answer in 4 significant figures.

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2.
3.
4.
5.
In a certain city district, the need for money to buy drugs is given as
the reason for 65% of all thefts. What is the probability that exactly 2
of the next 4 theft cases reported in this district resulted from the
need for money to buy drugs?
A store owner complains that, on the average, 3 bottles per case of a
certain brand of softdrink are underfilled. Assuming this is correct,
find the probability that a randomly chosen case of this drink will
contain at most 4 underfilled bottles.
On the average, 7 people per hour use an express teller machine
situated inside a commercial complex. What is the probability that,
from 3:00-4:00pm on Friday, exactly 7 people will use the teller
machine?
The probability that a certain production process will produce a
defective part is 0.20. Find the probability that a lot of 12 parts will
contain exactly 6 defectives.
The probability that a patient recovers from a rare blood
disease is 0.40. If 15 people are known to have
contracted this disease, what is the probability that at
least 12 survive?
Answer
Transcribed Image Text:1. 2. 3. 4. 5. In a certain city district, the need for money to buy drugs is given as the reason for 65% of all thefts. What is the probability that exactly 2 of the next 4 theft cases reported in this district resulted from the need for money to buy drugs? A store owner complains that, on the average, 3 bottles per case of a certain brand of softdrink are underfilled. Assuming this is correct, find the probability that a randomly chosen case of this drink will contain at most 4 underfilled bottles. On the average, 7 people per hour use an express teller machine situated inside a commercial complex. What is the probability that, from 3:00-4:00pm on Friday, exactly 7 people will use the teller machine? The probability that a certain production process will produce a defective part is 0.20. Find the probability that a lot of 12 parts will contain exactly 6 defectives. The probability that a patient recovers from a rare blood disease is 0.40. If 15 people are known to have contracted this disease, what is the probability that at least 12 survive? Answer
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