probability distribution questions and answers
November 13th, 2020

If there is a contingency on line 1, how does the distribution of line 2 changes? \sum_{j=1}^n A_j / m_j \exp( - x/m_j ), for x>0. Many thanks in advance for your attention and assistance. I would like to use non-probability sampling, but I am not sure whether it would be acceptable in a research paper. 2.Compute the standard deviation for each distribution. Taking the mean of these will give the most probable outcome given the network and input data. For X\sim N(25,18), \text{ determine } Pr[X is greater than 20 but \leq 30]. What are the values of the mean and standard deviation after co... A population forms a normal distribution with a mean of 80 and a SD of 15. iii. Actual fat-tail distribution for problems, 3. Assume the random variable x is normally distributed with mean μ = 80 and standard deviation σ = 4. |Repair Calls|0|1|2|3 |Probability|0.1|0.3|0.4|0.2 a. But, we often face a problem of dealing with data that do not behave as normal probability distribution, this case requires to pay more attention. c. equal to 1 . -1 to 1 c. 0 to 1 d. -3.09 to 3.09. According to the label, a can of soup holds an average of 302 grams, with a standard deviation of 4.5 grams. (I have attached the graph of these two sets of alpha and beta for visualization). What is the probability that the mean falls between the limits of 5.336 g and 5.596 g with a mean of 5.466 g and a standard deviation of 0.065 g? Hi, all these laws correspond to different probability distibuations. Yes, this is what I expected to know as I have seen many instances when data is being normalized and then find the anomalies. Find the z-score for each score in the sample. What is the mean and standard devi... A gumball machine has 6 red gumballs, 4 blue gumballs, and 3 yellow gumballs. The data, which are approximately normally dist... For a normal distribution, find the proportion of data that are: a) Within 1 standard deviation of the mean. I created a new test for uniformity, but so far, I've had no luck finding its critical values analytically, I could only obtain them by Monte Carlo simulation. The manager of a grocery store has taken a random sample of 100 customers. What is the probability that the two scores(values) do not add up to 7 ? In Australia, 58% of the population are rugby fans. 80000hours career guide argues that the more accurate distribution for career choice is the long-tailed one. To perform the forecasting calculation, it requires the actual performance data, as well as the information regarding the budget at completion, the baseline progress curve, the planned duration (PD), and the prior probability distribution of the project duration at a current time. Explore the latest questions and answers in Probability Distributions, and find Probability Distributions experts. As all these packages involve different methods of parameter estimation and have dissimilar list of inbuilt probability distribution, a comparison of these will not be worthy. A frequency distribution is shown below. b) What is P[X = 4]? The one you reported can only be one of the 1001 pseud-R² measures. Periodically, I update the parameters of these models based on the best elements I have found. I agre with Alvarez. Compute P. Assume the random variable X is normally distributed with mean mu = 50 and standard deviation sigma = 7. How to model the following stochastic programming problem? correction is made. 2- How can I technically call this “probability/value of correctness”? The second question: Is it possible for us to obtain any insight from probability distribution of input data to solve the issue: imbalanced data? What is the maximum number of cans that could be produced per... A survey of college students was conducted during the final exam week to assess the number of hours spent studying each day. Find P(B|A). you have to choose your username and password, We have a complex simulation model with several inputs, outputs and states. This can be estimated from data using the method of moments: The model is available online and has been implemented in Matlab: You can use these, or get inspired by these and write your own code. A bag contains 6 white and 4 black balls .2 balls are drawn at random. Assume the readings on thermometers are normally distributed with a mean of 0 C and a standard deviation of 1.00 C. Find the probability that a randomly selected thermometer read greater than 1.01... For Z\sim N(0,1), what is the a such that Pr[Z is greater than a but \leq 1.9]=0.62? It has been reported that households in the West spend an annual average of $6050 for groceries. He will win something if the winning number contains 8, 1, and 2 in any order. - 0 - 0.75 - 0.5 - 0.25 - 1, The probability that you will throw box cars (two 6's) with one throw using 2 dice is: a) 0.170 b) 0.028 c) 0.330. However, in certain situations the prior information is available only in the form of an initial guess value (natural origin) of then this guess may be utilized in the estimation of to improve the estimation procedure, In many real world situations, the experimenter may have some prior information regarding the unknown parameters due to past experiences. What is the probability that exactly three of them received five stars? For a regression problem in machine learning, except for data quality issues such as outliers and missing values, imbalanced data is an import issue as well. What is the probability that a random student selected is a finance or economic... A university's leadership council is made up of 12 members: 4 are students, 3 are teachers, and 5 are deans. The probability distribution that can be described by just one parameter is the: a. uniform b. normal c. exponential d. binomial, The probability of at least one head in two flips of a coin is: a. P (A) = 0.63, P (B) = 0.65, and P (A and B) = 0.41. If 8 parts are selected off a continuous assembly line, find the probability that no more than 6 are good (at most 6 are g... Find P (A or B) for the following. A container contains 12 Diesel engines. 1.700 c. 1.645 d. 1.750. Find the point estimates for p and q. Consider the following discrete probability distribution. Use the frequency distribution below, which shows the number of voters (in millions) according to age, to find the probability that a voter chosen at random is in the given age range: Not 65 years... Joe flipped a fair coin three times. Retraining of data model with same data and data order produces different model? The number of computers per household in a small town is given by: \begin{matrix} \text{Computers} & 0 & 1 & 2 & 3\\ \t... Find the probability P(z \lt -0.31) using the standard normal distribution. of vertebrae| Percent of fish |20| 3 |21| 51 |22|... Computer parts are manufactured with a probability of being 20% defective. I have data on captures per year (n=13) and I want to analyze the relation with years (is it increasing, decreasing or staying the same with time). Negative binomial random variable with parameter r and p can be thought of as the number of attempts before rth success. The selling price of used cars in city A in thousand dirhams is found to be normally distributed. Note that a transformation can make it quite difficult (well, essentially impossible) to interpret the model coefficients or tested hypotheses (about these coefficients), except for some special cases. b) In a histogram, the proportion of the total area to the l... What conditions must be satisfied in a discrete probability distribution? . a. The number x of bottles of garden plant fungicide sold by a garden center each day was recorded with the following results: The probability that at most two bottles will be sold on a randomly sel... A large airline keeps track of the no-shows for one of the most important commuter flights. 1) Compute the probability that X greater than 8.7 2) Compute the probability that X less than 0 3) Compute the probability t... Facebook provides a variety of statistics on its Web site that detail the growth and popularity of the site. Suppose that there are 6 people in the room. It would be good to try something out with some fictitious starting curves and examine the results produced graphically to see what you think most suitable to your problem.

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