Answered: We have the following probability table…

We have the following probability table for the random variable X. For what value of a, E[X] = 16.5? X P(X=X) Options: a) 15 10 a 20 25 0.4 0.2 0.1 0.3

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Related questions

Q: Fill in the P(x=x) values to give a legitimate probability distribution for the discrete random…

Q: Discrete Probability Distributions XYZ company the supplier of teleco presented 1000…

Q: Poisson Distribution: A concert venue has determined that customers arrive at a mean of 5 per…

Q: Miss Leo buys one mini lottery everyday. For every lottery she buys, it costs $1 and it has 0.001…

A: The cost of a lottery is $1 and the prize money is $200. The probability of winning the lottery is…

Q: WITH COMPLETE SOLUTION A six-sided die is rolled 15 times. What is the probability of getting value…

A: Given that ; A six sided die is rolled the probability of the value 5 comes = 1/ 6 Sample size (n)…

Q: The graph of the discrete probability below represents the number of live births by a mother 46 to…

Q: find the probability distribution of X.

A: It is given that Total television sets = 7 Defective sets = 2

Q: Continous distribution Assume that daily evaporation rates evaporation rate (E) have a uniform…

A: Proceed with the p.d.f of Uniform(a,b) distribution..............

Q: 27 What is P (X2)? In the space below, provide your answer as a decimal rounded to three decimal…

A: It is given asThe probability distribution for discrete random variable X is P(X = x) = (x + 9)/84 ;…

Q: Using probability distribution X 0 1 2 3 4 5 P(x) 0.041 0.189 0.247 0.326 0.159 0.038 A)P(x ≤…

A: A) Less than or equal to 3 means, 0 or 1 or 2 or 3

Q: A company wants to evaluate its attrition rate, in other words, how long new hires stay with the…

A: we know that total probability is equal to…

Q: The probability distribution of a random variable X is given. -199 -195 -191 -188 -185 p(X = x) 0.20…

A: Given, The probability distribution of a random variable x is given.

Q: Joint Probability Distribution -two or random variables -joint probability diatribution -marginal…

Q: It is estimated that 1 in 59 students in Canada have been diagnose Austism Spectrum Disorder. In a…

A: It is given that, 1 in 59 students in Canada has been diagnosed with Autism Spectrum Disorder. i.e.…

Q: Discrete distributions It has been observed that on an average one car out of ten cars tested fails…

A: We have given that Success of probability p= 1/10= 0.1 We use geometric distribution. X~G(p)

Q: Probability mass function shows probabilites of all vaues of discrete random variable

A: We know that, Probability Mass Function is used for the discrete random variable whereas…

Q: The number of typing errors on a page follows a Poisson distribution with a mean of 6.3. a. P(x=6)…

A: Here Given for No of typing errors on a page Follows Poisson distribution with mean =λ= 6.3 So Here…

Q: Probability mass function shows probabilities of all values of discrete random variable.…

A: Probability mass function: Probability mass function is a function that provides the probability…

Q: number

A: Given, The average number of internet interruptions in Barangay Alabang (λ) = 4

Q: Assume that when an adult is randomly selected, the probability that they do not require vision…

Q: Joint distribution

A: (a) Let us start from the beginning with an empty tableX\Y0120 1 2 now at first we will…

Q: Fill in the P(X=x) values to give a legitimate probability distribution for the discrete random…

A: Given probability distribution is X P(X=x) -5 0.30 2 a…

Q: From a coin box containing 4 dimes and 2 nickels,3 coins are selected at random with replacement…

Q: Working with Discrete Probability Distributions X (Videos rented) P (X) 0 1 10.10. 2 0.35 3 0.1 4 or…

A: P(X≤3)=?

Q: The accompanying table describes results from groups of 10 births from 10 different sets of parents.…

A: To find the maximum value in this range.

Q: Statistics and Probabilities

A: Given that Pmf of Y is y 2 4 6 8 10 P(Y=y) s 0.12 0.18 s 0.30 Note: According to bartleby…

Q: Assume that when human resource managers are randomly selected, 46% say job applicants should follow…

A: Answer: - Given, P = 0.46, and n = 7 Find the probability that at least 5 of them…

Q: Random variable x has the probability function f left parenthesis x right parenthesis equals x…

Q: e. Use the table below to determine the following: Height Z-Score -3 61.5 -2 64 -1 66.5 69 1 71.5 2…

A: We want to find the number of Americans men them do you expect to be between 69 and 71.5 inches tall…

Q: Handwriten

A: Answer is :

Q: Handwriting

A: Step 1: Step 2:

Q: calculator the mean for the discrete probability distribution shown here. x:2,5,9,10…

A: x p(x) xP(x) 2 0.09 0.18 5 0.07 0.35 9 0.22 1.98 10 0.62 6.2 Total 8.71

Q: The random variable, which describes the “time between customer arrivals at a retail store,” is an…

A: A fixed variable is the one that is assumed to be measured without error. It is the one that we set…

Q: Determining a Missing Probability value for the probability distribution: X P(x) 0 0.05 1 0.15 2…

A: The properties of discrete probability distribution is,Properties for discrete probability…

Q: The daily amount of coffee, in liters, dispensed by a machine located in an airport lobby is a…

Q: The Poisson distribution is a continuous distribution.

A: Given : Consider X~P(λ) pmf of X : P(X=x) = e-λλxx! X:0,1,2-----

Q: Below is a probability model. Outcome 1.5 1.5 4 6 Probability 0.3 0.2 0.15 0.35 Find the expected…

A: xP(x)1.50.31.50.240.1560.35Calculate expected value of probability model.

Q: Discrete Probability Distributions Suppose the efficacy of the covid vaccine is about 80%. Assume…

A: Given,n=10p=0.8q=1-0.8=0.2Let X=no.of exposed person will get covid in a sample of 10…

Q: EXPECTED VALUES OF CONTINUOUS PROBABILITY DISTRIBUTION Kindly view the picture to see the…

A: Given, the continuous probability function as- fx=kx2e-x when 0≤x≤1 (a) The required value of k is…

Q: Kennel 1: 6 Labradors, 2 Huskies, 3 Great Danes Kennel 2: 5 Great Danes, 2 Labradors, 4 Huskies…

A: Given, Kennel 1: 6 Labradors, 2 Huskies, 3 Great Danes Kennel 2: 5 Great Danes, 2 Labradors, 4…

Q: True or False? The normal distribution model is an important probability distribution model that is…

Q: The accompanying table describes results from groups of 8 births from 8 different sets of parents.…

A: Given data, Let X be the number of girls P(X=1)=?

Q: Handwriting

A: To find the probability that x = 1, given that x has a Poisson distribution with a mean (μ) of 4,…

Q: Question The amount of time it takes Jake to complete one homework problem from his Statistics class…

Q: Number of Girls Let X be a random variable giving the number of girls in a randomly selected three-…

A: The binomial distribution is a discrete probability distribution, which is introduced by a…

Question

Discrete probability distribution

We have the following probability table for the random variable X. For what value of a, E[X] = 16.5?
X
P(X=x)
Options:
a) 15
b) 10
c) 11
d) 23
10 a
0.4 0.2 0.1 0.3
20
23
25

Video Video

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Given Data

VIEW

Step 2: Finding value of "a"

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

Discrete Probability Distributions WITH COMPLETE SOLUTION Suppose the efficacy of the covid vaccine is about 80%. Assume that each person's response to the covid is independent oof another person's response. Find the probability that at least one exposed person will get the covid if 10 people are exposed.
O RANDOM VARIABLES AND DISTRIBUTIONS Shasia Discrete probability distribution: Basic Fill in the P(x=x) values to give a legitimate probability distribution for the discrete random variable x, whose possible values are -1,3, 4, 5, and 6. Value x of X P(x = x) 1 0.10 圖 3 4 0.14 0.30 Explanation Check 2UZI MCUraw HlLEGUcation. All Rights Reser/ed. Terms of Use I Privacy Accessibility
CONTINUOUS PROBABILITY
Fruit Fly Lifetimes Suppose that the probability function in the table below reflects the possible lifetimes (in months after emergence) for fruit flies. Let the random variable X measure fruit fly lifetimes (in months). Fruit fly lifetimes (in months) 1 2 3 4 5 6 p(x) | 0.30 ? 0.20 0.1o 0.10 0.05 (a) What proportion of fruit flies die in their second month? Enter the exact answer. P(X = 2) = i eTextbook and Media (b) What is the probability that a fruit fly lives more than four months? Enter the exact answer. P(more than four months) = eTextbook and Media (c) What is the mean lifetime for a fruit fly? Enter the exact answer. i months eTextbook and Media (d) What is the standard deviation of fruit fly lifetimes? Round your answer to two decimal places, O = i months eTextbook and Media
distribution of murders by type of weapon for murder cases in a particular Weapon country over the past 12 years. Complete parts (a) through (e). Handgun Rifle W (d) What is the probability that a randomly selected murder resulted from a weapon other than a gun? P(weapon other than a gun) = (Type a decimal rounded to three decimal places as needed.) Interpret this probability. Select the correct choice below and fill in the answer box to complete your choice. O No 00 OA. If 1000 murders were randomly selected, exactly of them would have resulted from a weapon other than a gun. OB. If 1000 murders were randomly selected, we would expect about (e) Are murders with a shotgun unusual? Yes P 2 :: C 1 H Shotgun Unknown firearm Knives Hands, fists, etc. Other I' of them to be have resulted from a weapon other than a gun. Vi tv 1. (1) ост 16 More Probability 0.479 0.026 0.033 0.143 0.135 0.054 0.130 Time Remaining
DISCRETE RANDOM VARIABLES
I need help with this please parts a and b
HYPERGEOMETRIC DISTRIBUTION: Suppose your friend has 10 cookies, 3 of which are chocolate chip. Your friend randomly divides the cookies equally between herself and you. What is the probability that you get all the chocolate chip cookies? *
O RANDOM VARIABLES AND DISTRIBUTIONS Discrete probability distribution: Basic Fill in the P(x=x) values to give a legitimate probability distribution for the discrete random variable x, whose possible values are 1,3, 4, 5, and 6. P(X = x) Value x of X 1 0.21 3 0.10 4 0.14 5 Aa 6 Explanation Check 20ZI MCGraw Hill Education. All Rights Resered Terme of Use Privacy II
Random Variable Let’s have X a random variable of which the distribution of probability is binomial B(5, p). Knowing that V(X) (variance) = 5/4: calculate p Calculate P(X≥ 2)
for binomial distribution sample size 45 students and 35% get a grade in the class find out the probability that 20 students get a grade in the class