assume that a procedure yields a binomial distribution
with n=7 trials and the probability of success of p=0.30
use a binomial probability table to find the probability that the
number of successes is exactly 4, at least2 and at most 3
In: Statistics and Probability
assume that a procedure yields a binomial distribution
with n=7 trials and the probability of success of p=0.30
use a binomial probability table to find the probability that the
number of successes is exactly 4, at least2 and at most 3
In: Statistics and Probability
Suppose a computer chip manufacturer rejects 1% of the chips produced because they fail presale testing. Assume the bad chips are independent. Complete parts a through d below
a) Find the probability that the third chip they test is the first bad one they find. The probability is __________
b) FInd the probability they find a bad one within the first 11 they examine _________
c) Find the probability that the first bad chip they find will be the fourth one they test _____________
d) Find the probability that the fifth chip they test is the first bad one they find _______________
An Olympic archer misses the bull's-eye 14% of the time. Assume each shot is independent of the others. If she shoots 8
arrows, what is the probability of each of the results described in parts a through f below?
a) Her first miss comes on the sixth arrow.
The probability is _____________
(Round to four decimal places as needed.)
A manager at a company that manufactures cell phones has noticed that the number of faulty cell phones in a production run of cell phones is usually small and that the quality of one day's run seems to have no bearing on the next day.
a) What model might you use to model the number of faulty cell phones produced in one day?
Geometric, Poisson, Binomial, Uniform ?
b) If the mean number of faulty cell phones is 1.9
per day, what is the probability that no faulty cell phones will be produced tomorrow?
c) If the mean number of faulty cell phones is 1.9
per day, what is the probability that 3 or more faulty cell phones were produced in today's run?
In: Statistics and Probability
How can the San Diego Padres, one of the weakest teams in the National League from a wins-losses perspective, be one of the most profitable?
In: Economics
DESIGN A FLOWCHART IN THE APPLICATION FLOWGORITHM
Exercise called: Number Analysis Program
Requirement: Make two modules in function and two modules in regular mode that carry out the processes and print the particular result and two function modules where the results are printed in the main.
Design a program that asks the user to enter a maximum of 20 numbers. The program should store the numbers in an array and then display the following data:
1-The lowest number in the array.in2-The highest number in the array.
3-The total of the numbers in the array.
4-The average of the numbers in the array.
PLEASE AND THANK YOU
In: Computer Science
Variance and standard deviation
Hull Consultants, a famous think tank in the Midwest, has provided probability estimates for the four potential economic states for the coming year. The probability of a boom economy is 13%, the probability of a stable growth economy is 20%, the probability of a stagnant economy is 54%, and the probability of a recession is 13%.
Calculate the variance and the standard deviation of the three investments: stock, corporate bond, and government bond. If the estimates for both the probabilities of the economy and the returns in each state of the economy are correct, which investment would you choose, considering both risk and return?
|
Investment |
Forecasted Returns for Each Economy |
||||||||
|
Boom |
Stable Growth |
Stagnant |
Recession |
||||||
|
Stock |
23% |
10% |
6% |
−10% |
|||||
|
Corporate bond |
9% |
7% |
6% |
4% |
|||||
|
Government bond |
8% |
6% |
5% |
3% |
|||||
Hint: Make sure to round all intermediate calculations to at least seven (7) decimal places. The input instructions, phrases in parenthesis after each answer box, only apply for the answers you will type.
What is the variance of the stock investment?
%
(Round to six decimal places.)
What is the standard deviation of the stock investment?
%
(Round to two decimal places.)
What is the variance of the corporate bond investment?
%
(Round to six decimal places.)
What is the standard deviation of the corporate bond investment?
%
(Round to two decimal places.)
What is the variance of the government bond investment?
%
(Round to six decimal places.)
What is the standard deviation of the government bond investment?
%
(Round to two decimal places.)
If the estimates for both the probabilities of the economy and the returns in each state of the economy are correct, which investment would you choose, considering both risk and return? (Select the best response.)
A.
The corporate bond would be the best choice because it has the highest expected return and the lowest risk.
B.
The stock investment would be the best choice because it has the highest volatility and therefore the best chance of a high return.
C.
The government bond would be the best choice because it has the lowest risk.
D.
There is not enough information to make this decision.
In: Finance
Probability of getting COVID-19 virus in a community
is 0.03. If a sample of three persons are sequentially taken at
random and person to person infection is independent then:[
denoting Y= getting virus and N= not getting]
(a) Make the sample space.
(b) Find the probability distribution of the number of persons
getting virus.
(c) Find the probability that at-least one person will get infected
by the virus.
(d) Find mean and variance of the number of persons getting
virus.
In: Statistics and Probability
The number of knots in a piece of lumber is a random variable,
X. Suppose that X has a Poisson distribution with E(X) = 4.
(a) If four independent pieces of lumber are examined, what is the
probability that there is exactly one lumber has no knots?
(b) If we consider 100 pieces of lumber, write down the exact
expression for the probability that the total number of knots is at
least 450?
(c) Find a normal approximation to the probability in (b).
Thank you!
In: Statistics and Probability
1. A) If you flip an unfair coin 100 times, and the probability for a coin to be heads is 0.4, then the number of heads you expect on average is:
B) If you flip an unfair coin 100 times, and the probability for a coin to be heads is 0.4, then the standard deviation for the number of heads is:
C) If you flip an unfair coin 2 times, and the probability for a coin to be heads is 0.4, then what is the probability to find exactly 1 heads?
D) If you flip an unfair coin 2 times, and the probability for a coin to be heads is 0.4, then what is the probability to find exactly 2 heads?
E) If you flip an unfair coin 10 times, and the probability for a coin to be heads is 0.4, then what is the probability to find exactly 2 heads?
F) Suppose that 20 molecules jump randomly in and out of a cell. Eventually, each molecule is independently distributed and has a probability 0.1 to be in the cell.
What is the variance of the count of these molecules inside of the cell?
In: Statistics and Probability
WEEK 9 DISCUSSION
Answer any two of the questions below:
In: Computer Science