Question

0.95 is the probability that a device will not fail under a given axial load. What...

0.95 is the probability that a device will not fail under a given axial load.

What is the probability among 16 devices at least three will fail?

Find the mean , variance and the standard deviation

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The probability density function of XX, the lifetime of a certain type of device (measured in...
The probability density function of XX, the lifetime of a certain type of device (measured in months), is given by f(x)={0 if x≤14 14/x^2 if x>14 Find the following: P(X>21) =    The cumulative distribution function of X:F(x)=⎧ The probability that at least one out of 6 devices of this type will function for at least 50 months:
Find the mean, variance and standard deviation for the probability distribution given below: X -2 3...
Find the mean, variance and standard deviation for the probability distribution given below: X -2 3 12 9 P(X) 0.556 0.109 0.206 0.129 Round to three decimal places. A. Mean = B. Variance = C. Standard Deviation =
In proof testing of circuit boards, the probability that any particular diode will fail is 0.01....
In proof testing of circuit boards, the probability that any particular diode will fail is 0.01. Suppose a circuit board contains 200 diodes. (a) How many diodes would you expect to fail? What is the standard deviation of the number that are expected to fail? (Round your answer to three decimal places.) (b) What is the (approximate) probability that at least four diodes will fail on a randomly selected board? (Round your answer to three decimal places.)
A plumber knows that the probability he will get called on any given weekday (Monday through...
A plumber knows that the probability he will get called on any given weekday (Monday through Friday) is 0.95. What is the probability that he only gets called on one week day? A plumber knows that the probability he will get called on any given weekday (Monday through Friday) is 0.95. What is the probability that he only gets called three week days or more? X is a random variable that is normally distributed with mean 100 and standard deviation...
Find the mean, variance and standard deviation for the probability distribution given below: X 0 5...
Find the mean, variance and standard deviation for the probability distribution given below: X 0 5 8 10 P(X) 0.598 0.136 0.208 0.058 A. Mean = B. Variance = C. Standard Deviation =
Find the mean, variance and standard deviation for the probability distribution given below: X: -5, 2,...
Find the mean, variance and standard deviation for the probability distribution given below: X: -5, 2, 12, 8, P(X): 0.575, 0.142, 0.209, 0.074 A. Mean = B. Variance = C. Standard Deviation =
Suppose that for a given computer salesperson, the probability distribution of x = the number of...
Suppose that for a given computer salesperson, the probability distribution of x = the number of systems sold in 1 month is given by the following table. x 1 2 3 4 5 6 7 8 p(x) 0.04 0.10 0.13 0.30 0.30 0.11 0.01 0.01 (a) Find the mean value of x (the mean number of systems sold). Answer= 4.14 (b) Find the variance and standard deviation of x. (Round your standard deviation to four decimal places.) variance = 1.8604...
Find the mean, the variance, and the standard deviation of the given probability distribution. The random...
Find the mean, the variance, and the standard deviation of the given probability distribution. The random variable X is the number of shoes sold by a retail sales associate in a single month at the Shoe Stop Alley.   x P(x) 1 0.12 2 0.27 3 0.38 4 0.14 5 0.09 A. Can you determine based on the table above if it is a probability distribution? B. If it is, find the mean. C. If it is, find the variance. D.If...
Device of type A is working properly without failures on average 1300hours, the standard deviation being...
Device of type A is working properly without failures on average 1300hours, the standard deviation being 250 h. Time without failures is supposed to be normally distributed. The device is put to use at moment ?=0. a) Determine the reliability of the device at moment t=1050 h. Give the answer as a decimal number in interval [0,1] (not as a percentage) with accuracy of three decimal places. b) Determine the failure density and failure rate at moment t=1050h. Give the...
It is known that the extension of a steel rod under a certain load is normally...
It is known that the extension of a steel rod under a certain load is normally distributed with an average of 0.05 inches and a standard deviation of 0.01 inches. elongation a) What is the probability that it is more than 0.1 inch? b) What is the probability of being less than 0.04 inch? c) What is the probability that it is between 0.025 and 0.065 inch?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT