Suppose X is a random variable with mean u and standard deviation o. If a large number of trials is observed, at least what percentage of these values is expected to lie between u – 3o and u + 30? (Round youranswer to the nearest whole number.)at least%

Given that, value is expected to lie between -3 and +3

Answered: Suppose X is a random variable with…

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...

See similar textbooks

Similar questions

Suppose we have a sample of 4 observations. All of the values lie between 0 and 20 (inclusive, and repeats are allowed). What is the largest possible value of the standard deviation? [Give your response to at least 3 decimal places.
The random variable xx represents the number of emails received at a help desk in one hour, and it has a Poisson distribution with a mean of 7.9. (Round to two decimal places.)What is the variance?σ2 = What is the standard deviation?σ =
A population has a mean of 50 and a standard deviation of 19 If a random sample of 36 is taken, what is the probability that the sample mean is each of the following? a . Greater than 50. b. less than 52. C. less than 49. d.between 45.5 and 54.5 e and Between 50.5 and 51.1
3. An airline has a baggage weight limit of 50 lb. Suppose that the weight of the baggage checked by an individual passenger is a random variable x with a mean value of 49 lb. If 110 passengers will board a flight, what is the approximate probability that the mean weight for this sample of passengers will exceed the limit if the standard deviation of the baggage weight for this group is 23 lb. ? (Round your answer to three decimal places.)
Suppose X is a normal random variable with mean ? = 100 and standard deviation ? = 10. Find a such that P(X ≥ a) = 0.03. (Round your answer to one decimal place.)a =
In a certain normal distribution, the mean is 50. If an observation of 30 is randomly selected, the z-score for this observation will be O Positive O Not enough information to tell O 50 O Negative
Suppose the scores of students on an exam are normally distributed with a mean of 444 and a standard deviation of 65. Then approximately 68% of the exam scores lie between the integers _____ and ____ such that the mean is halfway between these two integers.
Suppose a certain drug causes kidney problems in 10% of patients, and this drug is to be tested on 55 patients. Find the standard deviation for the number of patients who will experience kidney problems. 2.2249 5.5 5.0 2.345 The population standard deviation is the Square of the population variance positive square root of the population variance same as the expected value square root of the sum of the deviations from the mean
If x is a binomial random variable with n = 10 and p = 0.8, the standard deviation of x is _________. 64.0 10 1.26 8.0 1.60
H7
Which of the following is not one of the assumptions made in the analysis of variance? O A. None of these O B. The different populations all have the same mean. O C. The different populations all have the same standard deviation o O D. The distribution of the response variable is a normal. O E. Each sample is an independent random sample.

Recommended textbooks for you

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

SEE MORE TEXTBOOKS

Suppose X is a random variable with mean u and standard deviation o. If a large number of trials is observed, at least what percentage of these values is expected to lie between u – 3o and u + 30? (Round your answer to the nearest whole number.) at least %