Suppose that the hazard rate of a certain continuous positive random variable is given by 4t+4. Find the probability that this random variable is < 1/2. TYPE YOUR ANSWER AS A NUMBER WITH TWO DECIMAL DIGITS, AND USE e=2.72.

Q: For the probability density function f defined on the random variable x, find (a) the mean of x, (b)...

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Q: 1. Given a deck of 30 cards labelled with numbers 1- 10 (with 3 cards of each number), how many card...

A: From the given information,  A deck of 30 cards labelled with numbers 1-10 (with 3 cards of each num...

Q: three coins are tossed and the random variable z gives the number of tails. Find the range space, po...

A: Given that  Total number of tossed=3 H=Head , T=Tail

Q: 2. Find the mean, variance and standard deviation of the probability distribution of the random vari...

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Q: Exercise 5.6 The number of cracks that need repair in a section of interstate highway follows a Pois...

A: The number of cracks that need repairs in a section of interstate highway follows a Poisson distribu...

Q: A pair of dice is rolled and the sum is determined. Let the random variable x denote this sum. What ...

A: Let S be the sample space  E1 be the event for getting sum 5  E2 be the event getting sum 6  E3 be t...

Q: 2. Find the z-score corresponding to the given area, 0.3519, which is to the right of z of the norma...

A: We have given that.   X~N(0 , 1)   μ=0 , ? =1   Z-score =( x - μ )/?   NOTE:- According to bartleby ...

Q: andre flips one fair coin and then flips another fair coin. 1. What is the probability that he gets ...

A: Farmula used  P(A/B)=P(A and B)/P(B)  Note: According to Bartleby guidelines expert solve only one q...

Q: 2. Marissa is raising chickens and wants to build a fenced-in enclosure next to her chicken coop. Sh...

A: In this question given that Marissa has 100 feet of chicken wire fencing Find out draw a rectangle a...

Q: there are 6 balls inside of a box. 3 are blue and 3 are green. you randomly remove one at a time and...

A: The total number of balls inside a box =6The number of Blue balls =3The number of green balls =3 The...

Q: In how many ways can a PICE chapter with 30 directors choose a president, a vice president, a secret...

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Q: 2. Suppose that the population parameters for men are m = 85, and for women are m = with b = 9.5 in ...

A: In this question given that population parameter for men and women with b=9.5

Q: There are 7 performers who will present their comedy acts this weekend at a comedy club. One of the ...

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Q: box contains 17 transistors, 4 of which are defective. If 4 are selected at random, find the probabi...

A: A box contains 17 transistors, 4 of which are defective.  If 4 are selected at random, we know , out...

Q: solution From numbers 1 to 100, what is the probability of getting even numbers that add up (the dig...

A: There are n= 100 We know probability = favorable outcomes /total outcomes are 

Q: Which among the value is approximately equal to P(0.99<Z<1.5) A.) 0.0943 B.) 0.2333 C.) 0.7333 0.772...

A: which among the value is approximately equal to P(0.99&lt;z&lt;1.5)

Q: The joint probability mass function of the two random variables (X, Y) is given by f(x,y) = { 1/5(3...

A: INTRODUCTION:  Let X and Y be two discrete random variables. Then the two random variables X and Y a...

Q: In a certain class, 20 students do not like Spider-Man or Dark Knight. In the same class, 74 student...

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Q: Calculate (,), () (20 (17

A: Given: 112 2017 Here we use combination formula. nx = Cn,x = n!x!(n-x)1  

Q: An experiment involves tossing three fair coins. How many elements are there in the domain?

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Q: How many four-digit odd numbers less than 5000 can be formed using the digits 2, 3, 4, 5, 6. 6, and ...

A: Now here given  digits 2,3,4,5,6,9  

Q: In a five-card poker hand, what is the probability of being dealt exactly one seven and no picture c...

A: Here 5 cards are dealt from 52 cards  It is without replacement model 

Q: Twenty tickets are numbered 1 to 20 and one of them is drawn at random. What is the probability that...

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Q: STIOW sheet provided, 1. Find an interval of values for Z using the standard normal distribution, co...

A: as per company guidelines I solved only First questions ..thank you 

Q: In a lottery, the top cash prize was $646 million, going to three lucky winners. Players pick four d...

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Q: The following three terms are the 21, 22, and 23d terms of an A.P. Find the first term of this AP 87...

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Q: How many different 2 letter passwords can be formed from the letters A, B, C, D, E, and F if no repi...

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Q: A box contains 9 plain pencils and 1 pen. A second box contains 3 color pencils and 3 crayons. One i...

A: From the given option we have In first box total items = 9+1 = 10 In second box total items = 3 +3 =...

Q: dealt one card from a standard 52-card deck. Find the probability of being dealt a card greater than...

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Q: A certain hospital has 415 patients; 76 have high blood pressure only, 123 have heart problems only,...

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Q: What is the P(-1 SYS 2)? Find the cumulative distribution function of

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Q: 1. A box contains tickets 1, 1, 2, 2, 3. (The average of the tickets is 1.8 and the standard deviati...

A: Given Information: There are five tickets in the box. (1, 1, 2, 2, 3) The average of the tickets is ...

Q: In a shoot out in a hockey competition, a player scores on 80% of his shots. a) What is the probabil...

A: A random variable X~Geometric distribution(p=0.8)q=1-0.8=0.2

Q: standard error.

A: a. The given information in Non-college Grades Y=2890      Average salariessY=520     standard devia...

Q: 2. The joint density function of X and Y is given by fxv(x,y) = {@*y* Scxy2 x – 1< y<1-x, 0 <x<1 els...

A: As per the policy we are providing you the solution of first 3 sub parts . You can ask remaining que...

Q: In a five card poker hand, what is the probability of being dealt exactly one seven and no picture c...

A: Here given five card poker hand dealt from standard deck of 52 cards  Here total picture cards = 12 ...

Q: Which Among z score corresponds to the middle 30 percent. A.) plus minus 0.25 B.) plus minus 0.39 C....

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Q: (a) What is the probability that their first child will have green eyes and the second will not? 0.1...

A: NOTE-AS PER POLICY I HAVE CALCULATED FIRST 3 SUBPARTS Here Given  Probablity of Brown eyes=P(BR)=0.7...

Q: a. Create a tree diagram for the scenario above., b. What is the probability that a randomly selecte...

A: Here define events and draw tree diagram 

Q: A Muesli manufacturer has a new machine that fills the boxes. Boxes are labeled *650 g", so the comp...

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Q: 2. Assume that a retail store has customers whose ages are normally distributed such that mu = 37.5 ...

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Q: 2. a this problem you will analyze the performance of an enterprise small- cell. The call model is a...

A: Given Information: The average duration of calls is 1.5 minutes. The call request rate is 3 calls pe...

Q: Round your answers to 4 decimal digits. An appliance dealer sells three different models of upright...

A: Find  Mean, standard deviations  Farmula used  V(X)=E(X2)-(E(X))2  Sd(X)=√V(X)   

Q: a. What is the sample space? b. What is the probability of selling 5 laptops the next day? c. What i...

A: here use given table sample space is set of all possible outcomes here outcomes as number of laptops...

Q: The total nitrogen (TN) concentration (mg/L) is one of the important indicators for a water sample. ...

A: Here sample is given,  Xi: 21, 23, 30, 28, 22, 27, 32, 35  Sample size is n= 8 Null hypothesis for t...

Q: A single die is rolled twice. The 36 equally-outcomes are shown in the picture. Find the probability...

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Q: Q4 In this question, the real numbers in your answers should be given with three significant digits ...

A: Given  PNegativeNegative=0.95 PPositiveNegative=0.04 PHospitalisedNegative=0.01 PNegativePositive=0....

Q: Problem: A card is drawn at random from a pack of cards. Calculate:

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Q: Classify the random variables (1) the number of red marbles in a jar (2) time it takes to get to sch...

A: A variable is said to be discrete if it takes only specific values like whole number, integers, etc....

Q: If you are dealt 4 cards from a shuffled deck of 52 cards. Find the probability that all 4 cards are...

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