1) A discrete probability distribution is given below.1450,10,30,2Xp(x)Find u.Find o.20,230,2b)Find the probability that x is within one standard deviation of the mean. Compare this result withthe Empirical Rule.

A discrete probability distribution of X is given below.X12345P(x)0.10.20.20.30.4

Answered: 1) A discrete probability distribution…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Q10. Z-score If Z is standard normal variable use the table of standard normal probabilities to find and draw the diagram. a) P(z2.13)
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The discrete probability distribution is given by i. ii. iii. x P(X = x) 0 0 1 k Show that k Find the mean of the probability distribution. Find the variance of the probability distribution. 2 2k 3 3k نیا
Consider the probability distribution function: X: 1 Probability: 0.2 0.7 0.1 For the above distribution function, the variance of X is O A. 0.54 О В. 0.27 O C. 0.92 O D. 0.29
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I. TRUE OR FALSE. Choose A if the statement is always true, otherwise choose B. 1. The sum of the probabilities of all values of the random variable must be equal to 1. 2. The capacity of water dams in a region is an example of continuous random variable. 3. The formula u = is used to compute for the mean of a probability distribution. IxF(x) 4. A standard normal curve is a normal probability distribution that has a mean of one and standard deviation of one 5. The width of the curve in normal distribution is determined by the mean of the distribution. 6. The mean of the sampling distribution of the sample means is less than the population mean. 7. The standard error of the mean is the standard deviation of the sampling distribution of the sample means. 8. The sampling variability of the sample means becomes smaller as the sample size n gets larger. 9. In estimating the mean, the degrees of freedom is equal to (n - 1) when using the t- distribution. 10. The t-distribution is asymmetric…
The table below shows the probability distribution of the random variable X. a. Find the mean of the random variable. b. Obtain the standard deviation o of the random variable. 1 P(X =x) 0.4 0.1 0.5 a. Find the mean of the random variable. (Round to two decimal places as needed.) b. Obtain the standard deviation o of the random variable. O = (Round to two decimal places as needed.) Enter your answer in each of the answer boxes. ? Le
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1) A discrete probability distribution is given below. 1 5 0,1 0,2 X p(x) a) b) Find u. Find o. 2 0,2 3 0,2 4 0.3 Find the probability that x is within one standard deviation of the mean. Compare this result with the Empirical Rule.