Suppose that a marketing research firm sends questionnaires to two different companies. Based on historical evidence, the marketing research firm believes that each company, independently of the other, will return the questionnaire with probability 0.40. What is the probability that both questionnaires are returned? Round your answer to 2 decimal places.

Q: Q5//Four technicians regularly make repairs when breakdowns occur on an automated production line.…

A: Given Information: PHamza=0.20 PYousof=0.60 PAbdulrahman=0.15 PMostafa=0.05 PRepair | Hamza=120=0.05…

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A:

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A: The provided information is  The ANOVA is Source of Variation Sum of squares Degrees of Freedom…

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Q: b) If we have the following mass function: f(x) = x/6, x = 1, 2, 3: Find 1. V(x) 2. V(4x) 3. V(3+4x)…

A: According to our guidelines, we can answer only 3 sub-parts. So, please repost the rest parts.

Q: 10 10 (96), (9)(3) + 18 18 (3⁹) (15) 3 = 0.215686 ans

A: Given that

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A: Solution

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A:

Q: probability that the number on the ticket is divisible by 2 or 3 is

A: here given ,  A bag contains 100 tickets Numbered 1,2,3,....100  there are total 100/2 =  50 Numbers…

Q: 1. How many arrangements could be made of the word GRATEFUL if: o there are no restrictions? o the…

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A: here given ,  A test instrument needs to be calibrated periodically to prevent measurement errors.…

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A: Note: If the post contains multiple subparts, only allow to do first three subparts as per…

Q: Is the given statement true or false? nC₁= "Cn-r O a. False b. True O

A: Given: nCr = nCn-r

Q: Q4/ The average on a statistics test was 78 with a standard deviation of 8. If the test scores are…

A:

Q: In how many ways can we select 6 people out of 12, ?of which a particular person is not included…

A: GivenNo.of people(n)=12No.of people to be selected(r)=6

Q: r A continous random variable x has p.d.f.,then f(x) >;0 a O It; f(x)==0 f(x) >==0 f(x) >=1 .b O .CO…

A: To find: A continous random variable x has p.d.f , then ?

Q: (1) Find the two-step transition matrix P(2)= (2) Find the three-step transition matrix ⠀⠀⠀ P(3) =…

A:

Q: You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe…

A: The following information has been given: The population standard deviation is σ=76.5. The margin of…

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A: Given : Probability,p = 0.5 number of trial,n = 3

Q: A set of measurements {x₁, x₂, x3,...,x,} has a mean of and a standard deviation of s. What are the…

A:

Q: Q)A urn contains 18 green and 7 white balls, the balls are removed at random without replacement.…

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

Q: picked at random. Calculate the probability that it is reliable.

A: HERE FROM GIVEN INFORMATION  p(A) = probability that component manufacture by A = 0.50  p(B) =…

Q: If X is a Binomial random variable with parameter (n, p), where 0< p <1, then as k goes from 0 ton,…

A: Given that,

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

A: Required probability is P(0.87&lt;Z&lt;1.28)

Q: Calculate the means and standard deviations of:37, 26, 19, 21, 19, 25, 17 O a. 3; 7.141 b. 3;2.414…

A: Given n=7 37,26,19,21,19,25,17

Q: many different possibilities are there for arranging the

A:

Q: μ = 3, o² = 9, P(-6 < X < 12) a. Determine P(u - ko < X < µ+ ko) ≥ 1 − 1/k²

A: Given μ=3, population variance σ2=9, P(-6&lt;X&lt;12)=?

Q: O Let assume three times tosses of an unfair coin as random experiment with μ = 2/3 (probability of…

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

A: Given,Total no.of toppings=6

Q: In a competition, junior chefs make a gourmet soup by selecting 10 different ingredients. How many…

A: GivenNo.of different ingredients(n)=10No.of ingredients must include(r)=4

Q: Suppose 5 men out of 100 men and 10 women out of 250 women are colour blind, then find the total…

A:

Q: The probability that none of the three bulbs in a set of traffic lights will have to be replaced…

A:

Q: 15. About 64% of the applicants pass the admission test every year. Approximately how many of the…

A: Formula E(X) = np

Q: Weights of female cats of a certain breed are normally distributed with mean 4.1 kg and standard…

A:

Q: 1. What is the probability of getting the number 5 when a fair die is thrown? A. 0 B. 1/6 C. 1/2 D.…

A:

Q: 1. What are normal distributions, and why are they sometimes referred to as bell curves?

A: Question : What are normal distributions, and why are they sometimes referred to as bell curves?

Q: a) A box contains 6 red balls 4 blue balls Draw two balls in a row If the draw is with the return,…

A: As per our guidelines we are suppose to answer only one question. Given,no.of red balls=6no.of blue…

Q: I want it through probability and random variables with maximum speed Q4: b- Find the value of the…

A: Formula : ΣF(X) = 1

Q: If the probabilities that an automobile mechanic will service 3,4,5,6,7,8 cars on any given working…

A: Given that, the probabilities that an automobile mechanic will service 3,4,5,6,7,8 cars on any given…

Q: A bag contains 100 tickets numbered 1,2....,100. If one ticket is picked at random, the probability…

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Q: According to data, Metro Manila experiences major earthquake once every 4 months. What is the…

A: Farmula used P(E)+P(Ec)=1

Q: fewer than 10 cars have fewer than three passengers ii) at least 15 cars have fewer than three…

A:

Q: A random variable X has unknown mean and variance o² = 25. To determine the mean u, one may…

A: Given : Population variance=25 E=0.01 Significance level =95%

Q: Use the calculator displays to the right to make a decision to reject or fail to reject the null…

A: From the provided information, Sample size (n) = 45 Sample mean (x̄) = 59.25 Population standard…

Q: In a certain factory. Three machines produce pencils. For factory evaluation, samples were chosen…

A: Given Information: Type of production 1st machine 2nd machine 3rd machine Good 200-N 200+N…

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A: Given data : sr.no X Y 1 6 4 2 1 9 3 3 8 4 7 3 5 5 5 6 2 8 7 3 7

Q: Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 3…

A: Required probability is P(Female AND got a 'B')

Q: Let X be a random variable corresponding to the number of shoppers that enter a mall at a given time…

A: Givenan average 10 shoppers enters mall per minutefor 1 second,=1060=16 shoppers per secondfor 90…