Probability Question
Q: In a population, it was found that the diastolic blood pressure is normally distributed with a mean ...
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Q: Each of 14 refrigerators of a certain type has been returned to a distributor because of an audible,...
A: binomial distribution is calculated using the formula p(X=x)= nx px(1-p)n-x given x= 6 n= 9 p=0.67...
Q: The mass of a whiffle ball varies, usually between 40 and 50 grams. You decide to gather a random sa...
A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want solution...
Q: The mean and variance of a Binomial variable X with parameters n and p are 16 and 8. Find P(X> or...
A: Given: X ~ Bin (n , p) EX=16VX=8
Q: Seatbelts is a time series giving the monthly totals of car drivers in Great Britain killed or serio...
A: Hii ! Thanks for posting the question . Since your question has many subparts we have solved some su...
Q: Suppose you are a researcher in a hospital. You are experimenting with a new tranquilizer. You colle...
A: Hello! As you have posted 2 different questions, we are answering the first question. In case you re...
Q: Q If the joint p.d.fof X and Y as f(x,y) = fcx*y „xsys1 ,0. W find the value of c and P(x 2 y).
A: There is a fact that ∫-∞∞∫-∞∞fx,ydxdy=1, where fx,y is the joint density function of the variables X...
Q: 1. A population has a mean of 75 and a standard deviation of 17.4. A sample of 35 items is randomly ...
A: Note: Please repost remaining questions as i can answer only question as per my policy. 1) Given dat...
Q: the CPA Practice Advisor reports that the mean preparation fee for 2017 federal income tax returns w...
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and s...
Q: STATISTICS AND PROBABILITY 3. A random variable has a normal distribution with a standard deviation ...
A: According to given data: The standard deviation is: σ=6 Given that: PX<45=0.67 So by simplifying ...
Q: 5. Let X be uniformly distributed over the interval [0,5]. Find а) Р(X < 3) b) P( |X – 1|2)
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Q: Plz explain.
A: As we are entitled to solve one question at a time I will answer 2nd one as some information is miss...
Q: For this exercise, round all regression parameters to three decimal places.The table below shows the...
A: Given: The average cost C, in dollars, of chemistry and physics periodicals t years after 1980. Ob...
Q: The results of the previous Licensure Examination for Teachers show that the average score of exa ta...
A: We assume that the result score of the teachers is denoted by random variable X and hence, approxim...
Q: A signal will fail to get through a network when the following combination of events (R, n R2) UR is...
A: Given: PR1=0.2. PR2=0.2. PR3=0.2. R1,R2 and R3 are independent events. The objective is to determi...
Q: is this right? x+15 =10; x= -5
A: From the above question The given equation is X+15=10 And the question is what is the value of x
Q: Suppose A and B are events in a sample space with P(A) = 0.62, P(B) = 0.67, P(BU A) = 0.91 Find the ...
A: Given A and B events of a sample space where; P(A)=0.62P(B)=0.67P(B∪A)=0.91 (a) We know by addition ...
Q: The distribution of the number of children for families in the United States has mean 0.9 and standa...
A: Given that a random sample of 1000 families is chosen. The distribution of the number of children fo...
Q: For a confidence level of 80% with a sample size of 32, find the critical t value. You intend to est...
A: Obtain the critical value of t at the 80% confidence level. The critical value of t is obtained belo...
Q: Plzzz explain both question. Ty
A: Consider that there are two type of customers, one who are regular customers who will surely arrive ...
Q: Random samples of size n were selected from binomial populations with population parameters p given ...
A: From the provided information, a) n = 100, p = 0.4
Q: Q.2\ I need to choose a password for a computer account. The rule is that the password must consist ...
A: GivenThe password must contain 2 lower case letters (a-z), one Upper case letter (A-Z), four digits ...
Q: Question 1:Suppose that 36% of all university students regularly eat breakfast. In a random sample o...
A: The sampling distribution of the sample proportion is approximately normal with at least 5 expected ...
Q: The weights (in pounds) of 6 vehicles and the variability of their braking distances (in feet) whe...
A: Given the weights (in pounds) of 6 vehicles and the variability of their braking distances (in fee...
Q: The manager of The Cheesecake Factory in Memphis reports that on six randomly selected weekdays, the...
A: From the provided information, Sample size (n) = 6 The data values are as follow: 130, 80, 235, 295,...
Q: The following table represents the highest educational attainment of all adult residents in a certai...
A: We need to find the Probability of the resident who has completed Some college and aged 40 and over ...
Q: In a certain university, the students were informed that they need a grade in the top 8% of the engi...
A: Given: X=Grade to obtain the scholarship grant Mean μ=76 Standard deviation σ=14 X~Nμ=76,σ=14 The co...
Q: The ages of Bria's five cousins are listed below. 18 10 9. 16 13 1) Calculate the mean. %3D 2) Fill ...
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Q: (2) Let X be a random variable with a function 3 1 |4 х! (3-х)! x = 0,1, 2,3 S(x) =- then p(x S 1) i...
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Q: Suppose you have a bag containing four white balls numbered 1,2,3,4, three blue balls numbered 5,6,7...
A: Hello there! Thank you for the question. According to our honor code can answer three sub parts at a...
Q: A marketing company surveys teenagers leaving a movie theater to learn about their purchasing habits...
A: Given Information: A marketing company surveys teenagers leaving a movie theatre to learn about thei...
Q: If a person has a rare disease, then a diagnostic test for that disease detects it with a probabilit...
A: Let an event D denotes that person has disease and Dc denotes that person does not have disease. Al...
Q: 1. A population has a mean of 75 and a standard deviation of 17.4. A sample of 35i items is randomly...
A: As per bartleby guidelines only 1 question is answered please upload the rest separately. Population...
Q: A bowl of fruit contains 5 bananas, 7 oranges, and 2 apples. Two fruits are selected one after anoth...
A: General formula of probability is , Probability = Number of favorable outcomesTotal outcomes
Q: In a game the player wins if he rolls a 6 on a number cube. If the number cube is rolled 18 times, t...
A: Given data: The given number cube. The probability of success or getting a six is, P6=16 The probabi...
Q: Complete the truth table
A: Consider the following notations, a∧b represents a statement of the form 'a and b'. a→b represents ...
Q: In a recent survey, 1100 adult Americans were randomly selected and examined for high blood pressure...
A: Given that Survey of Americans examined for high blood pressure. A recent survey randomly selected ...
Q: A principal of a large high school wants to estimate the true proportion of high school students who...
A: Given information- Sample size, n = 50 For a random sample of 50 students, the 95% confidence interv...
Q: Is Exercise 10 (Homework) m how many different ways can the letters of the unnd OPTICAL be amranged ...
A: The word 'OPTICAL' contains 7 different letters. Vowels in word optical are OIA
Q: Find each of the probabilities, where z is a z-score from the standard normal distribution with mean...
A: The probability in an interval a<x<b for any continuous random variable is equals to the area ...
Q: The time intervals between successive barges passing a certain point on a busy waterway have an expo...
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Q: Q.2\ How many distinct sequence can we make using 3 letters "A"s and 5 letters "B"s? (АААВВBBB, AАВB...
A: Hello. Since you have asked multiple questions, we will solve the first question for you. If you wan...
Q: For any normal distribution, the proportion in the tail beyond z = 2.00 is p = 0.0228.
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Q: The average return for large-cap domestic stock funds over the three years 2009-2011 was 14.6%. Assu...
A: Given that Average return for large cap domestic stocks funds over three years 2009-2011 is: μ=14.6%...
Q: Determine the value of c and the covariance and correlation for the joint probability mass function ...
A: Given information: fXY=cx+y for x=1, 2, 3 and y=1, 2, 3
Q: Suppose that a family has 5 children. Also, suppose that the probability of having a boy is 12. Fin...
A: The binomial probability distribution is, PX=x=nxpx1-pn-x In the formula, n denotes the number of tr...
Q: In a student's statistics class, the final grade is based on four categories. The categories, grades...
A: Weighted average = ∑(grade*weight)/∑w
Q: I need help solving this Please! Thank you!
A: There are 52 cards in a deck. We can draw any 4 cards in a row in 52P4 ways. There are 13 spades...
Q: On a youth soccer team 3 out of 12 team members have played in previous years. Based on this informa...
A: The formula of mean is,
Q: Forty families gathered for a fund-raising event. Suppose the individual contribution for each famil...
A: Given that, Mean = 125 Standard deviation = 32 Sample size = 40
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