Answer the following 12 multiple choice questions by selecting the correct answer. (1 points for each correct answer) 1. Which one of the following is NOT a condition of the binomial distribution? A) Independent trials B) Only two outcomes C) Probability of success remains constant from trial to trial D) At least 10 observations
Answer the following 12 multiple choice questions by selecting the correct answer. (1 points for each correct answer) 1. Which one of the following is NOT a condition of the binomial distribution? A) Independent trials B) Only two outcomes C) Probability of success remains constant from trial to trial D) At least 10 observations
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Answer the following 12 multiple choice questions by selecting the
correct answer. (1 points for each correct answer)
1. Which one of the following is NOT a condition of the binomial distribution?
A) Independent trials
B) Only two outcomes
C) Probability of success remains constant from trial to trial
D) At least 10 observations
2. A box containing 7 green balls and 8 red balls. A red ball is randomly drawn from the box,
and then returned back to the box, what is the probability that a red ball will be drawn on
the second selection?
A) 7/14
B) 8/15
C) 8/14
D) 7/14
3. In Riyadh region, past records revealed that 70% of all the high school graduates go to
universities. From 12 high school graduates selected at random, what is the probability
that exactly 5 will go to college?
A) 0.029
B) 0.210
C) 0.417
D) 0.125
4. A study by the Ministry of Health revealed that 55% of the patients visit the government
operated health centers, 35% visit private health centers, and 25% visit both. What is the
probability that a patient will not visit a health center?
A) 0.65
В) 0.25
C) 0.35
D) 0.30
5. For a standard normal distribution, what is the probability that z is less than 1.25?
A) 0.8944
B) 0.1056
C) 0.3944
D) 0.2113
6. 10 light bulbs in a box and 3 of them are defective. If two light bulbs are to be selected
without replacement, what is the probability of selecting a defective light bulb followed by
another defective light bulbs?
А) 3/10
В) 1/15
С) 3/90
D) 6/100
2

Transcribed Image Text:7. A board of directors consists of 6 men and four women. A four-member search committee
is to be chosen at random to recommend a new company president. What is the probability
that three members of the search committee will be women?
A) 12/105
В) 3/10
C) 6/25
D) 3/16
8. An urn contains five blue balls and four yellow balls. If four balls are selected randomly
with replacement, what is the probability that three are blue balls and one is a yellow ball?
A) 0.3339
B) 0.5556
C) 0.3048
D) 0.3175
9. The mean cost customers pay for gasoline in a gas station is SAR 75. The distribution of
cost of gasoline is approximately normal with a standard deviation of SAR 12. What is the
probability that a randomly selected customer will pay between SAR 60 and SAR 87?
A) 0.3413
B) 0.7357
С) 0.2643
D) 0.3944
10. Families spend on average SAR 750 per month on entertainment. Assuming that the food
costs are normally distributed with standard deviation SAR 125, what is the probability
that a family spends less than 600 per month?
A) 0.3849
B) 0.8850
C) 0.6151
D) 0.1150
11. If two events A and B are mutually exclusive, what does the special rule of addition state?
А) Р(А or B) %3D Р(A) + P(B)
B) P(A and B) = P(A) + P(B)
С) Р(А and/or В) %3 Р(A) + P(В)
D) P(A or B) — Р(А) - Р(В
=
12. Assume that the average number of accidents in a major road in Riyadh is 18 per day.
What is the probability that one accident occurs in any given hour?
A) 0.1734
B) 0.6457
C) 0.3543
D) 0.8266
3
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