Solve the following problem step by step please A newspaper does a survey of reading preferences and finds that, of 150 people surveyed, 120 read electronic, 50 physical and 10 do not read any format, what percentage read only format?

Q: 1. What is the probability that a student selected at random is a boy? PB = 285/465 2. What is the…

A: The total number of students is 465.

Q: 10) A card is drawn at randum from a pack of 52 Card What is the probability that the card is king…

A:

Q: If E denotes the expectation the variance of a random variable X is denoted as

A: Here use mean and Variance of random variable X

Q: if a class has 2 freshmen, 1 shphomore, 3 juniors, and 5 seniors, what is the probability that three…

A: From the provided information, A class has 2 freshman, 1 sophomore, 3 juniors and 5 seniors. Total…

Q: Q6/ Find the probabilities that a random variable having the standard normal distribution will take…

A: Givena)between 0.87 and 1.28

Q: a random variable has probability distribution: x= 0,1,2,3,4,5,6,7 and P(x) =0,k,2k,2k,3k,k*k, 2k*k,…

A: Solution-: We have given following table: x 0 1 2 3 4 5 6 7 P(x) 0 k 2k 2k 3k k2 2k2 7k(k+1)…

Q: 2. Suppose that a password for a computer system must have at least 8, but no more than 12,…

A: As Dr. S. N. De said "A permutation of a set is defined as an arrangement of its members into a…

Q: A manufacturing plant consists of four machines, independently operating, to produce a certain…

A: The reliability or the probability of working of the four machines is as follows: Machine…

Q: Suppose that the weight of an newborn fawn is Uniformly distributed between 2.3 and 3 kg. Suppose…

A:

Q: Consider a hypothetical state that has 8 representatives and a population of 1.2 million. Party…

A: Solution: From the given information, a state has 8representatives and a population of 1.2 million.…

Q: 3 A card is drawn from a full pack of 52 playing cards. If the card drawn is an Ace, King, Queen or…

A: As Prof. N. G. Das said "If there are n mutually exclusive, exhaustive and equally likely outcomes…

Q: Suppose that X and Y have a joint probability density function given by ce-3z-5y fxy(x, y) = if x, y…

A: Given f(x,y)=ce-3x-5y x,y≥0

Q: A card is drawn from a standard deck of 52 cards. What is the probability that it is a king, given…

A: We know that the probability of event A is , P(A) = n(A)/n(S)  where, n(A) = number of observation…

Q: Q9] Of a lot of 10 items, 2 are defective. (a) Find the number of different samples of 4. Find the…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Q2/suppose there were six kinds of toppings that one could order for a pizza. How many combinations…

A:

Q: In a lot of 50 light bulbs, there are 2 bad bulbs. An inspector examines 5 bulbs, which are selected…

A:

Q: Determine whether the distribution represents a probability distribution. X 3 7 10 13 P(X) 0.1 0.3…

A: The provided information is  X 3 7 10 13 P(X) 0.1 0.3 -0.7 0.8   Then,…

Q: The probability that a component is faulty is 0.04. Two components are picked at random. Calculate…

A: From the provided information, Sample size (n) = 2 The probability that a component is faulty is (p)…

Q: Is the number of games won by a major league baseball team in a season related to the team batting…

A: The following information has been given: x (Games won) y (Batting Average) 83 264 117 261…

Q: Let probability that a child will be born with black eyes is 1/3, determine the probability that…

A: It is given the probability that a child will be born with black eyes is 1/3 i.e. p=1/3. It has been…

Q: Q3/ The probability that a consumer will rate a new antipollution device for cars What are the…

A: Given: P(Very Poor) = 0.07 P(Poor) = 0.12 P(Fair) = 0.17 P(Good) = 0.21 P(Very Good) = 0.32…

Q: P(-1<Z<1)= round to four decimal places

A: Given that P(-1&lt;Z&lt;1)

Q: times at each screening station follow an exponential distribution and that arrivals follow a…

A:

Q: Q3/ The probability that a consumer will rate a new antipollution device for cars What are the…

A: Given: Rate very poor poor fair good very good Excellent Probability 0.07 0.12 0.17 0.32 0.21…

Q: The probability that there is no accident at a certain busy intersection is 95% on any given day,…

A: Given: Probability  of no accidents (p) = 0.95   a) Number of days (n) = 7 Let X be binomial…

Q: 1) Three missiles are fired at a target. If the probabilities of hitting the target are 0.4, 0.5 and…

A: Solution

Q: Frank noticed that his mother will serve salad with dinner 78% of the nights, will serve potatoes…

A: given;Pr(Frank's mother will serve salad with dinner ) =78%=0.78Pr(Frank's mother will serve…

Q: Use the Central Limit Theorem to find the mean and standard error of the mean of the indicated…

A: Solution

Q: nounces). 65.8, 66.3, 68.3, 65, 64.9, 66, 64.4, 62.8, 66.2, 65.6 = 0.01 significance level to test…

A: Given 65.8, 66.3, 68.3, 65, 64.9, 66, 64.4, 62.8, 66.2, 65.6

Q: If E denotes the expectation the variance of a (random variable X is denoted as (E(X))^2 - E(X

A: Given: If E be the expectations then varience of random variable x  Var(x)= (E(x))^2-E(x)  a); True…

Q: next problem with the production line diagnosed as being due to an initial repair that was…

A: Here define events  Initial Repair made by hamza = H Initial Repair made by hamza = y Initial…

Q: 6. A 5-pound bulk bag of M&Ms holds approximately 2900 pieces. How many of each color should we…

A: Hello Thankyou for the question. According to our honor code can answer only three sub parts at a…

Q: An airline company is considering a new policy of booking as many as 218 persons on an airplane that…

A: Given n=218 P=0.90

Q: andom variable has probability stribution: x= 0,1, 2 ,3 ,4, 5,6,7 and P…

A: We know that the  By total probability law, sum of all the probabilities of a random variable is…

Q: Suppose that the weight of an newborn fawn is Uniformly distributed between 2.3 and 3 kg. Suppose…

A: Given : a = 2.3 ,b= 3

Q: Q2/suppose there were six kinds of toppings that one could order for a pizza. How many combinations…

A: Solution-: Given: There are 6 kinds of toppings that one could order for a pizza.  How many…

Q: The probability a chip is manufactured to an acceptable standard is 0.87. A sample of six chips is…

A:

Q: 03: The effective life of a component used in a jet-turbine aircraft engine is a random variable…

A:

Q: A random sample of 50 employees is chosen from a company. The average salary of the 50 employees is…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A flu shot is administered during flu season. We look at the effect of the shot on individuals who…

A: 1)Givensample size(n)=100Mean(x)=4standard deviation(s)=1confidence level=95%

Q: J be Let 白 & be a Space 'S.. 8 - derive random and let a partition of 's Using only Kolomogorov's a)…

A:

Q: 55 Prove that the functio: probability density F Given f(x)= 2(1-x) and (0<x< ضافة ملف

A: Solution

Q: Two "random" quarter-circles is generated as follows. First one randomly, uniformly choose a cutoff…

A:

Q: 0. The average service rate is 14 people per hour. What is the average time required to serve a…

A: The average number of people arriving = 10 per hour The average number of people getting services =…

Q: What happens to the width of a confidence interval as we increase confidence level, i.e as we…

A:

Q: A continous random variable x has p.d.f.,then a. f(x)>=1 b. f(x)>==0 C. d. f(x) >:0 0=<lt; f(x)=<1

A: It is given that f(x) is a probability density function (pdf) of a random variable X.

Q: X 2 4 If (x₁y) 2 f(x,y). · 10.10 3 0.15 5 0·10 0.20 0.30 0·15 a. Determine the marginal distribution…

A: f(x,y)       2        4        Total      1        0.10       0.15 0.25  Y= 3…

Q: f (x) = kx^2, k constant, -1 =< x =< 1. f (x) is a p.d.f. ?the value of k= 1

A: Here use basic of probability density function  For valid probability distribution total probability…

Q: A variable that can assume any value between two given points is called Continuous random variable…

A: In above question we will discuss about continuous random variable and whether above statement is…

Q: Alonzo must choose a size, a flavor of ice cream, and a topping for his ice cream dessert. There are…

A: a) Total outcomes are 12.