part d, e and f

Q: A random variable (A) has a mean 55 and a standard deviation of 5. A random variable (B) has a mean…

A: given dataμA = 55σA = 5μB = 75σB = 10y = A+B,    μy = ?

Q: Answer quickly please A random variable (A) has a mean 55 and a standard deviation of 5. A random…

A: given datavariable A : mean(μA)=55                    S.D.  (σA)=5variable B : mean (μB)=75…

Q: It is well known that a placebo, a fake medication or treatment, can sometimes have a positive…

A: Given  n1=60, n2=50  p^1=16%, p^2=45%

Q: Suppose that 30% of all students who have to buy a text for a particular course want a new copy (the…

A:

Q: Find the probability of each of the following, showing your choose a) Two heads in throwing a coin…

A: Given that  A) Two heads in throwing a coin six times nCr = n! /{r!*(n-r)!} Note : According to…

Q: Now let's look at the theoretical distribution: X f= σ= Q1 = U(0, 1)

A: Given X~U(0,1) Note: According to Bartleby guidelines expert solve only one question and maximum 3…

Q: Accounting A research study in England(1) done by The Education Endowment Foundation (EEF) suggests…

A:

Q: QUESTION 3 Let XXX be a random sample from an exponential distribution with density function Then…

A: Pivotal quantity is the quantity which one is independent of parameter.

Q: 4. Suppose that we roll three fair dice. (a) What is the expected value of the sum of the numbers…

A:

Q: It is estimated that 60.5% of adults in Nevada have received at least one dose of the COVID-19…

A: From the provided information, 60.5% of adults in Nevada have received at least one dose of the…

Q: A game show awards the winner of a contest a random whole dollar amount uniformly distributed…

A: given data  uniform distribution x~U(100,500)P(190<x<386) = ? f(x) = 1b-a = 1500-100 = 1400

Q: Let A, B, and C be three events, such that each event has a probability of 1/2, each intersection of…

A: GIVEN          Let A, B, and C be three events          P(A)=P(B)=P(C)=1/2…

Q: Consider three basketball players: Anna, Beth, and Carolyn. The probability that Anna will make a…

A:

Q: Once an individual has been infected with a certain disease, let X represent the time (days) that…

A:

Q: Suppose 6 coins are tossed. Find the probability of tossing no heads. (Round to four decimal…

A: suppose 6 coins are tossed. a coin have two faces H(head) and T(tail).

Q: Empirical Results With Replacement 1. L 2. L 4. GR 7. o 10. R 13. GR 16. O 19. L 22. GR 5. B 8. GR…

A: Solution: The data for the with replacement and without replacement is given.

Q: The lengths of tables sold at various furniture stores follow a normal distribution with u = 120 cm…

A: From the provided information, Mean (µ) = 120 Standard deviation (σ) = 15.6 X~N (120, 15.6)

Q: Vehicle speed on a particular bridge in China can be modeled as normally distributed. USE SALT (a)…

A: Let population mean μ and standard deviations σ

Q: (a) In a random sample of 186 children taken more than a decade ago, what is the probability that 50…

A: a) n=186 More than a decade ago, high levels of lead in the blood put 83% of children at risk. Let X…

Q: Let x have an exponential distribution with λ = 1. Find the probability. (Round your answer to four…

A: It is given that X have an Exponential distribution with λ = 1.

Q: Test samples of mild steel rods are selected randomly from a large number of rods with mean strength…

A: Given,mean(μ)=65 kips per rodstandard deviation(σ)=10 kipsThe combined mean for 10 rods…

Q: Based on an analysis of sample data, an article proposed the pdf f(x) = 0.35e-0.35(x when x ≥ 1 as a…

A: Given that : f(x)=0.35e-0.35(x-1)

Q: If 10 % of a population is left-handed and we take a random sample of 30 people, then the…

A: Givenpercentage of population is left-handed(p)=10%=0.10sample size(n)=30

Q: If the cafeteria on BU's campus serves ice cream only 15% of the time, what is the probability that…

A: Given information- We have given that the cafeteria on BU's campus serves ice cream only 15% of the…

Q: Write a valid conclusion. This problem was written by Charles Dodgson, better known as Lewis…

A: The answer is attached below.

Q: A fruit-canning company produces 250ml pineapple juice cans at its bottling plant. The population…

A: Given that, The population standard deviation for volume of pineapple juice filled in the cans is,…

Q: What percentage of world population are smokers? b) What percentage of women are smokers? c) What…

A: Let us define some events  A : a person is man. B : a person is woman. E : a person is smoker. Given…

Q: Suppose the average yearly cost of car insurance in Australia is $800. Since the annual insurance…

A: To be uniformly distributed , data must not varies at any point.It must same peak at every point.

Q: (4) Find the conditional probability that the watch has an operational lifetime in excess of 5 years…

A: Given:

Q: ||| O PROBABILITY Intersection and conditional probability Suppose that a certain college class…

A:

Q: An electrical system cons connected as illustrated (probability the figure. of working) c

A: Given,   P(A works) = 0.9 P(B works ) =0.8 P(E works ) = 0.7 P(C works ) = 0.7 P(D works ) =…

Q: services to make each time. Suppose that the probability distribution of X is as follows: What is…

A: Given data is x 0 1 2 3 4 5 6 7 8 9 P(x) 0.08 0.09 0.09 0.14 0.18 0.16 0.09 0.06 0.06 0.05

Q: It is useful for Fire Departments to have a model for X =number of direct injuries occurring in a…

A: From the provided information, X 0 1 2 3 4 5 6 7 8 9 P (x) 0.08 0.09 0.09 0.14 0.18 0.16 0.09…

Q: Given three events A, B and C such that P(An B n C) = 0 and P(C|An B) = P(C|B), show that P(A/B nC)…

A: Given three events Show that P(A/B∩C) =P(A/B )

Q: One method of arriving of economic forecasts is to use a consensus approach. A forecast is obtained…

A: Given Information: Mean μ=4.75 Standard deviation σ=0.2 Required: To find the probability that the…

Q: According to previous studies, 10% of the U.S. population is left-handed. Not knowing this, a high…

A:

Q: The average production cost for major movies is 69 million dollars and the standard deviation is 18…

A: As per our guidelines we can solve first three sub part of question and rest can be reposted.…

Q: Consider the density curve plotted below: PDF(X) 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02…

A:

Q: Given P(A) = 0.58, P(B) = 0.62, P(A)*P(B) = 0.3596, P(C) = 0.7, P(C') = 0.3, P(AlC) = 0.4, P(BlC) =…

A: Given Information:  P(A) = 0.58 P(B) = 0.62 P(A)*P(B) = 0.3596

Q: You arrive at a bus stop to wait for a bus that comes by once every 30 minutes. You don't know what…

A: Given,A random variable X~U(0 , 30)f(x)=130   ;   0≤X≤30

Q: In each case, determine the value of the constant c that makes the probability statement correct.…

A:

Q: D,E, F

A: Given that  Probability mass function of X is X 0 1 2 3 4 f(x) = P(X=x) 0.2 0.1 ? 0.2 0.3…

Q: P(B) = 0.4 / 0.6 = 2 / 3 = 0.6667  where did all the numbers in this line come from?

A: It is given that P(A U B) = 0.8, P(Ac) = 0.6

Q: Suppose that a manufacturing process is such that the probability of a card being correctly…

A: p(correctly populated)=0.85 ∴p(incorrectly populated)=0.15if correctly populated : profit 50 rand…

Q: 1. In your own words, discuss the following in not more than 5 sentences each: a. Null Hypothesis,…

A: Null hypothesis is an statement about the parameters such that there is no difference exists.

Q: Assume that the drawer contains 10 coins: 3 quarters, 3 dimes, and 4 nickels. One coin is randomly…

A: Given the drawer contains 10 coins: 3 quarters, 3 dimes, 4 nickels. One coin is randomly selected.

Q: 2. The frequency table shows information about the number of children living in each house on a…

A: Given information: Time, t(minutes) Frequency 0 to 30 14 30 to 60 52 60 to 90 32 90 to…

Q: 5. As of 2021, the country Swaziland in southern Africa (now officially named as Eswatini) had the…

A: Probability is used to measure the likelihood of the event happening. It takes values between 0 to…

Q: An article gave a scatter plot along with the least squares line of x = rainfall volume (m³) and y =…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Bivariate data often arises from the use of two different techniques to measure the same quantity.…

A: In this case, x defines the hydrogen concentration using a gas chromatography method and y defines…