ACTIVITYB. Find the variance and standard deviation of each probabilitydistributions. You may use the space provide below.1231.P(x)0.100.450.250.20X1234P(x)0.110.220.330.250.092.

From the provided information, 1) The probability distribution table is as follow: X 0 1 2…

Answered: B. Find the variance and standard…

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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The probability distribution given describes the number of thunderstorms that a certain town may experience during the month of August. Let X represent the number of thunderstorms in August. Calculate the variance (VX). X=# of storms 0 1 2 3 p(x) 0.1 0.2 0.4 0.3 A. 1.06 B. 1.6 C. 0.94 D. 0.89
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The table shows the probability distribution of the number of days (x) to complete a construction project by a contractor. x f(x) 1 0.104 2 3 0.312 4 0.240 5 0.098 6 0.017 11 If you added 2 days to each value in the Days (x) column, the variance of days to completion will be _________. a 3.428 b 2.784 c 1.428 d 1.142
Find the variance for the probability distribution 4 0 1 2 3 P(X=x) 0.04 0.18 0.34 0.23 0.21 Select one: а. 1.12 b. 1.26 с. 1.59 d. 3.79
P(x) 0.05 1 0.1 0.25 3 0.6 Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal places
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Save Use the probability distribution to complete parts (a) and (b) below. The number of defects per 1000 machine parts inspected Defects 1 4 Probability 0.262 0.301 0.243 0.138 0.042 0.014 (a) Find the mean, variance, and standard deviation of the probability distribution. The mean is . (Round to one decimal place as needed.) Incorrect
The probability distribution below is for the random variable X = the number of credits taken during the fall semester by a randomly selected student at a large university. Calculate the mean of X. Round to the hundredths place. Credits 14 15 16 17 Probabiblity 0.05 0.65 0.20 0.10
The random variable X has the probability distribution given in the following table. 1 2 3 4 5 P(X = x) 0.03 0.27 where a, b and e are constants. It is given that E(X) = 3.5 and Var(X) = 1.17. Find the values of a, b and c.
Use the probability distribution to complete parts (a) and (b) below. The number of school-related extracurricular activities per student Activities 0 4 5 1 2 3 6 7 0 Probability 0.057 0.121 0.163 0.177 0.216 0.127 0.086 0.053 (a) Find the mean, variance, and standard deviation of the probability distribution. The mean is 3.4. (Round to one decimal place as needed.) The variance is (Round to one decimal place as needed.)
Let x be the number of courses for which randomly selected student at a university is registered. The probability distribution of x appears in the following table. ( all students must be enrolled in between 1 and 7 classes ) x. 1 2 3 4 5 6 7 P (x) ( 0.02 ) ( 0.04 ) (0.09 ) (0.24) ( 0.39 ) ( 0.17 ) ( .05 ) a. Find mean (x) ( round to two decimal places ) B. Find standard deviation of x ( round to two decimal places ) c. What is the probability that x is within 1 standard deviation of the mean? In other words solve: p ( mean of x - standard deviation of x < x < mean of x + standard deviation of x )=
Let x be a Poisson random variable. Calculate the probability distribution of x for the given 2. Find the mean, variance, and standard deviation. Draw a graph of this probability distribution. 2 = 2.1 Round the probability to four decimal places and the standard deviation to three decimal places. P(x = 2) = i Mean = i Variance = i Standard deviation = i P(x) P(x) 0.25 0.8 0.20 0.6 0.15 04 0.10 0.2 0.05 O1 2 3 4 O1 2 3 4 567S 10 10 Fig. 1 Fig. 2 P(x) P(x) 0.35E 0.30 0.15 0.25 0.20 0.1아 0.15 0.10 0.05 0.05 O 1 23 4 56TS 9 10 10 Fig. 3 Fig. 4 Input the number of the correct graph.

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B. Find the variance and standard deviation of each probability distributions. You may use the space provide below. 1 2 3 1. P(x) 0.10 0.45 0.25 0.20 2. 1 2 3 P(x) 0.11 0.22 0.33 0.25 0.09