1.Which of the following distributions is widely used to describe the time between random events? Uniform...
1.Which of the following distributions is widely used to describe the time between random events?
Uniform distribution
Exponential distribution
Poisson distribution
Normal distribution
None of the answer choices is correct.
2. Which of the following distributions is not skewed?
Normal distribution
Uniform distribution
Lognormal distribution
Exponential distribution
I only
II only
III only
IV only
Only I and II
Homework Answers
1.
Exponential distribution is widely used to describe the time
between random events
2.
Only I and II
Add Answer to:
1.Which of the following distributions is widely used to
describe the time between random events?
Uniform...
The distribution that concerns itself with the time between successive occurrences of events in a Poisson...
The distribution that concerns itself with the time between successive occurrences of events in a Poisson process is: Select one: a. Beta distribution. b. Lognormal distribution. c. Exponential distribution. d. Normal distribution.
Which of the following distributions could not be used to describe the exact distribution for a...
Which of the following distributions could not be used to describe the exact distribution for a continuous random variable? a. Binomial distribution b. Poisson distribution c. Hypergeometric distribution d. all of these e. none of these
1. Properties of the uniform, normal, and exponential distributions Aa Aa Suppose that x1 is a...
1. Properties of the uniform, normal, and exponential distributions Aa Aa Suppose that x1 is a uniformly distributed random variable, x2 is a normally distributed random variable, and x3 is an exponentially distributed random variable. For each of the following statements, indicate whether it applies to x1, x2, and/or x3. Check all that apply. x2 x3 (uniform) (normal) (exponential) The area under the graph of the probability density function to the right of the mean equals 0.5. Probabilities are given...
help me on my hw plz Which of the following regarding the student t-distributions is/are not...
help me on my hw plz
Which of the following regarding the student t-distributions is/are not true? 1. Like the standard normal distribution, the t-distribution is centered at 0. II. The spread of a t-distribution is slightly less than the corresponding normal distribution III. At-distribution can be used when the population standard deviation is unknown (A) I only (B) Il only (C) I and III (D) I, II, and III
Which of the following is an element of (EOQ) inventory analysis? I. Theoretical cumulative probability distributions....
Which of the following is an element of (EOQ) inventory analysis? I. Theoretical cumulative probability distributions. II. Measures of operating time variability. III. Observed cumulative probability distributions. IV. Expected annual demand. V. Random number generators.
Q4. (20pts, Binomial and Poisson approximation Suppose a gambler bets (1) ten times on events of...
Q4. (20pts, Binomial and Poisson approximation Suppose a gambler bets (1) ten times on events of probability 1/20, (2) then twenty times on events of probability 1/20, (3) then thirty times on events of probability 1/30, (4) then forty times on events of probability 1/40. Assuming the events are independent. (i) What is the exact distribution of the number of times the gambler wins in (4)? (It suffices to say the name of the distribution with appropriate parameter(s).) (ii) What...
i) CHOOSE which of these probability distributions is most appropriate to describe a random variable X...
i) CHOOSE which of these probability distributions is most appropriate to describe a random variable X defined as "the number of approved state-government construction contracts bid by the engineering firm in the recent year". * X~Poisson(8) X~Po(3.2) X~Binomial(8,0.4) X~Negative Binomial(8,0.4) X~Geometric(0.4)ii) Using the random variable X in question 1(i), which of the following mathematical expressions indicates: the probability that the engineering firm will not get any state-government construction contracts that they have bid in the recent year? * P(X=8) P(X...
which of the following distributions can be completely described by only two parameters? a. uniform b....
which of the following distributions can be completely described by only two parameters? a. uniform b. normal c. log normal d. all of the other choices
Pick the correct answer A-The key characteristic to distinguish between using a T test and a...
Pick the correct answer A-The key characteristic to distinguish between using a T test and a Z test is: Group of answer choices i)whether the sample is normally distributed ii)whether μ is known iii)sample size iv)whether σ is known B- A sampling distribution of means is: i)used for estimating a sample mean ii)tends to be skewed iii)sometimes based on different sized samples. iv)used for estimating population means C-Parameter is to population as statistic is to: i)sampling ii)inferential iii)sample iv) class...
Answer True or False for the following questions: 1. The probability density function (pdf) is used...
Answer True or False for the following questions: 1. The probability density function (pdf) is used to describe probabilities for continuous random variables. 2. The cumulative distribution function (cdf) gives the probability as an area. 3. The amount of time (beginning now) until an earthquake occurs has an uniform distribution 4. Normal distributions are commonly used in calculations of product reliability, or the length of time a product lasts. 6. The exponential distribution has the decay parameter, which says that...
1. Properties of the uniform, normal, and exponential distributions Aa Aa Suppose that x1 is a uniformly distributed random variable, x2 is a normally distributed random variable, and x3 is an exponentially distributed random variable. For each of the following statements, indicate whether it applies to x1, x2, and/or x3. Check all that apply. x2 x3 (uniform) (normal) (exponential) The area under the graph of the probability density function to the right of the mean equals 0.5. Probabilities are given...
help me on my hw plz
Which of the following regarding the student t-distributions is/are not true? 1. Like the standard normal distribution, the t-distribution is centered at 0. II. The spread of a t-distribution is slightly less than the corresponding normal distribution III. At-distribution can be used when the population standard deviation is unknown (A) I only (B) Il only (C) I and III (D) I, II, and III
Q4. (20pts, Binomial and Poisson approximation Suppose a gambler bets (1) ten times on events of probability 1/20, (2) then twenty times on events of probability 1/20, (3) then thirty times on events of probability 1/30, (4) then forty times on events of probability 1/40. Assuming the events are independent. (i) What is the exact distribution of the number of times the gambler wins in (4)? (It suffices to say the name of the distribution with appropriate parameter(s).) (ii) What...
Most questions answered within 3 hours.
-
Suppose a distant world with surface gravity of 6.88 m/s2 has an
atmospheric pressure of 8.12...
asked 27 seconds from now -
A mixture contains 5.432 g of
sand and 2.521 g of salt. What is the percentage...
asked 5 minutes ago -
A 8.62 -m ladder with a mass of 21.1 kg lies flat on the ground.
A...
asked 3 minutes ago -
What problem would arise from this vanadium-based treatment over
the course of a lifetime in diabetes
asked 3 minutes ago -
Homework: Create a Class.... from scratch
Design , implement and test a class that can be...
asked 18 minutes ago -
A project has a service life of five years with the initial
investment outlay of $200,000....
asked 15 minutes ago -
Employee develop involves longer term training and opportunities
that while not immediately needed on a current...
asked 14 minutes ago -
Why is the reticulum the affected compartment of the
stomach?
Group of answer choices
It has...
asked 16 minutes ago -
(Print distinct numbers) C++
Write a program that reads in 10 numbers and displays distinct
numbers...
asked 17 minutes ago -
A 3.0275 g sample of KHP (a primary standard, 1:1 acid:base,
FM=204.23 g/mol) is titrated with...
asked 23 minutes ago -
1. You need to make an aqueous solution of
0.165 M barium acetate for an
experiment...
asked 22 minutes ago -
Let X be a discrete random variable with the following PMF.
Px(k) =
1/4 for k...
asked 27 minutes ago