The following function is probability mass function. 3x+5 f(x) = x = 0, 1,2, 3, 4 55 Determine the mean, u, and variance, o?, of the random variable. Round your answers to two decimal places (e.g. 98.76).

Q: A census collected data on everyone that lived in a certain small town. The random variable X is the…

A: The provided information is  x P(X=x)=P(x) x*P(x) x2*P(x) 0 0.0857 0 0 1 0.2447 0.2447 0.2447…

Q: Fisn ranges from Scm to 4cm. They are normally distributed W| mean:84 cm and sd= 18cm. A). Fisn…

A: Let, X = Length of fish. X~Normal(μ=84, σ2=182) (A) A fish is selected at random. We need to find…

Q: The discrete random variable x has the probability distribution given by: 2 3 5 10 P(X = x) 0.2 0.1…

A:

Q: +7%, 60.75 of & E Question Help Use the data in the following table, which lists drive-thru order…

A: The given information is represented in the below table:

Q: On her various camping trips, Kendra kept a log of the types of snakes she saw. She noted their…

A: From the provided information, The table is as follow:   Under 1 foot long At least 1 foot…

Q: h. Find the conditional distribution of f (x[y), P(X = 2 | Y = 1). i. Find the conditional…

A: here given joint distribution of x and y  Using bayes rule Calculate the conditional Distribution

Q: 1. Let X denote the number of times a certain numerical control machine will malfunction: 1, 2, or 3…

A: f(x,y)   y=1   y=2    y=3   Total    x=1    0.1 0.05 0.02 0.17      x=2    0.1 0.35…

Q: Use the data in the following table, which lists drive-thru order accuracy at popular fast food…

A: Approach to solving the question:Contingency tables are a great way to classify outcomes and…

Q: Answers for part D and E

A: Introduction: Denote p as the true population proportion of people who are satisfied with the way…

Q: and let Consider a random variable X with the following distribution r 13 4 7 8 P(X=x) 0.2 0.25 0.1…

A: (a) To calculate the mean of X, we multiply each value of X by its corresponding probability and sum…

Q: The probability distribution for the number of houses on a street is given, but one value is…

A: XP(X)220.16230.2240.2325?260.18

Q: please ask a and

A: a)PX is even∪X≥7=PX=2+PX=4+PX=6=f2+f4+f6=0.25+0.1+0.1=0.45   Therefore, the probability that X is…

Q: Please help me answer

A: Question 1To find the variance, we need to use the formula below. Formula:Variance=∑[x2×P(x)]−μ2…

Q: Please do not give solution in image format thanku The replenishment time for a certain product is…

A: The replenishment time for a certain product is known to be Gamma distrbuted with mean 40 and…

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A: To find the correlation coefficient ρXY​ between X (the number of oranges) and Y (the number of…

Q: 1. Let X denote the number of times a certain numerical control machine will malfunction: 1, 2, or 3…

A: f(x,y)     y=1   y=2     y=3    Total       x=1   0.10  0.05    0.02   0.17…

Q: The random variable X is the number of color television sets owned by a randomly selected household…

A: (a) The mean is 1.276. (b) The standard deviation is 1.263. (c) The probability histogram is option…

Q: ata in the following table, which lists drive-thru order accuracy at popular fast food chains.…

A: The table is given below:ABCDTotalOrder accurate336263250120969Order Not…

Q: i If random variable X has a larger expected value than random variable Y then it must also have a…

A: Solution:  i): In Discrete math, If the expected value of a random variable X larger, then the…

Q: Use the data in the following table, which lists drive-thru order accuracy at popular fast food…

A: A B C D Total Order Accurate 315 267 241 121 944 Order Not Accurate 33 51 34 17 135 Total…

Q: w. Determine if the random variables are statistically independent considering f (2, 1).

A: here given ,  joint distribution of x and y  two variables are statistically independent when f(x,y)…

Q: Let X denote the number of times a certain numerical control machine will malfunction: 1, 2, or 3…

A: Given  f(x,y) y 1 2 3 Total x 1 0.10 0.05 0.02 0.17 2 0.10 0.35 0.05 0.50 3 0.03 0.10…

Q: BAD Line ile The life of a light bulb is distributed normally, The Variance of the life time PS 225…

A: GivenMean(μ)=520Variance(σ2)=225standard deviation(σ)=225=15

Q: ll Boost 20:22 A ixl.com For a class assignment, Dillon wanted to study whether or not the color of…

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Q: Let X denote the number of times a certain numerical control machine will malfunction: 1, 2, or 3…

A: Given data is f(x,y) y 1 2 3 Total x 1 0.10 0.05 0.02 0.17 2 0.10 0.35 0.05 0.50 3 0.03…

Q: A discrete random variable has probability distribution: x= 1, 2,3,4, 5 and P(x) =0.12 ,0.15, 0.23,…

A: The standard deviation can be calculated by taking square root of the variance of X. And the…

Q: g is the probability distribution of a random variable that represents the number of extracurricular…

A: The problem is asking for the probability that a student participates in at most three activities.…

Q: please help answer

A: Solution : The given contingency table is     A B C D Total Order accurate 330 266 235 138 969…

Q: We have the following information about the random variables X and Y: o² = 4.6, o} = 8.5, and pxy =…

A: Given that

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.