Time spent by students studying daily is a uniformly distributed random variable with mean = 136 minutes. The p. d .f. of this random variable is:   f(x) = .00625 for a

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A: The mean value of a continuous random variable is computed by integrating the multiplication of…

Q: ume that x has a normal distribution with a-26%. A random sample of 17 Australian bank has a sample…

A: The question is about hypothesis testingGiven :Population mean dividend yield (  ) = 6.5 %…

Q: Assume that X and Y are two random variables. Suppose Y is exponential with mean 798. Suppose that,…

A: Given that Y follows Exponential with mean 798 And X | Y = y follows Exponential with mean y We have…

Q: Let x be a random variable representing the length of trout in a lake.  A friend claims that the…

A: We have given that,  Sample mean length (x̄) = 19.4 and sample standard deviation (s) = 3.8 and…

Q: Assume that the probability of a being born with Genetic Condition B is p = 7/10. A study looks at a…

A: Given: Random sample, n = 384 Probability, p = 710=0.7

Q: A fair die is tossed twice. The random variables X and Y are the outcomes of the first and second…

A: As a fair dice is being rolled it can be assumed that X and Y are uniformly distributed between 1…

Q: length of a cutthroat trout in Pyramid lake. A friend claims that the average length of trout caught…

A: As given, Let x be a random variable representing the length of a cutthroat trout in Pyramid lake.…

Q: P b. 0.9 C. Od. 0.5

A: It is an important part of statistics. It is widely used.

Q: Assume that the probability of a being born with Genetic Condition B is �=1/6. A study looks at a…

A: the probability of a being born with Genetic Condition B is (p)=1/6sample size(n)=532

Q: The mean percent of childhood asthma prevalence in 43 cities is 2.38​%. A random sample of 32 of…

A: The probability of the mean childhood asthma prevalence for the sample is greater than 2.7​% is…

Q: Let x be a random variable that represents the average daily temperature (in degrees Fahrenheit) in…

A: Introduction: Here, X denotes the average daily temperature (degrees Fahrenheit) in January. Based…

Q: The lives (in hours of continuous use) of 100 randomly selected flashlight batteries are: Interval…

A: The formula of mid value is, Calculation of mid value:

Q: Give the range of values that the random variable X may assume and classify the random variable as…

A: Discrete variable means It can have some limited values only..It can not have In between values..…

Q: If X be a normally distributed random variable with variance of 121 such that P(X > 35) = 0.0212,…

A:

Q: REM (rapid eye movement) sleep is sleep during which most dreams occur. Each night a person has both…

A: Given: n1 = 9 Children. X1 = 2.7 Hours. n2 = 9 Adults. X2 = 2 Hours. α = 1% = 0.01

Q: Ex8: Assume that the current measurements in a strip of wire follow a normal distribution with a…

A: Assume that the current measurements in a strip of wire follow a normal distribution.

Q: Assume that the probability of a being bor sample of 1168 volunteers. Find the most likely number of…

A: Solution

Q: The unemployment rate in a city is 12%. If 6 people from the city are sampled at random, find the…

A: p(unemployed) = p = 0.12n = 6p(x≤2) = ?

Q: A hospital is testing patients for Covid daily. The probability that a patient has covid is 34%.…

A: Given that  Probability of success p=0.34 The 1st patient to test positive for covid will be found…

Q: The accompanying table describes results from groups of 10 births from 10 different sets of parents.…

A: The given probability distribution is:Number of Girls; xProbability;…

Q: The probability that a randomly selected adult has an IQ less than 128 is (Type an integer or…

A: Given:  Consider X as a random variable that follows a normal distribution with mean 22 and…

Q: A random number generator picks a number from 4 to 56 in a uniform manner. Round answers to 4…

A: Dear Student, As per the guidelines, I can solve only the first 3 subparts. Kindly repost the last…

Q: The percent of fat calories that a person consumes each day is normally distributed with a mean of…

A: GivenMean(μ)=33standard deviation(σ)=10sample size(n)=9

Q: use calculator me: Band: Due Date: Let x be a random variable that represents the weights in…

A: Step 1: Step 2: Step 3: Step 4:

Q: Let X represent the weight in pounds of a king salmon caught at the mouth of certain river and…

A: Given problem Given that   Let X represent the weight in pounds of a king salmon caught at the…

Q: The random variables A and B have variances 0.2 and 0.5 respectively. Let T= 5A+2B. The variance of…

A: Here given  Var(A) = 0.2 Var(B) = 0.5 T = 5 A + 2B

Q: Students at a local high school were randomly selected to participate in a math fluency program. The…

A: The confidence interval at 100 (1 – α) % confidence level gives us an interval estimate about the…

Q: Assume that the probability of a being born with Genetic Condition B is �=1/6. A study looks at a…

A: From the provided information,Probability of a being born with Genetic Condition B is p =1/6Sample…

Q: Use the fact that the mean of a geometric distribution is μ=1p and the variance is σ2=qp2.   A daily…

A: The given is, p=11000=0.001Mean =µ =1p=1000Variance =qp2=1-0.0010.0012=999000Standard deviation…

Q: Let x be a random variable that represents the average daily temperature (in degrees Fahrenheit) in…

A: i)  Column I represents the z-intervals for the normal distribution, X~N75, 8 according to the…

Q: The random variable X represents the number of tests that a patient entering a hospital has. Find…

A: The question is about discrete prob. dist. Given :

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A: Let Xi be the allowance the boy get in the ith week. The urn contains 5 bills: #$1=4 and #$10=1 Let…

Q: The Catalina Bison win 60% of the puzzle competitions they enter. Find the n (it should be an odd…

A: Let n be the total number of competitions played by Catalina Bison and X denote the number of wins.…

Q: Find the indicated probability and interpret the result.   From 1975 through​ 2020, the mean annual…

A: The problem provides us with the following values:Population mean (μ) = 651Sample size (n) =…

Q: a. A random variable X has the following probability distribution: 0 x 18 5x 18 10 x 18 15 x 18 20 x…

A:

Q: A random variable X is normally distributed with a mean of ( 18 ) and a variance of ( 18.49 ) . The…

A: From the provided information, Mean (µ) = 18 Variance (σ2) = 18.49 Standard deviation (σ) = √18.49 =…

Q: A football coach finds that player run times for a 50-meter dash are normally distributed. A new…

A: The z-score is 1.6 which implies that there is 1.6 standard deviation above the mean.

Q: Find the variance for each of the values of n = 500 and p = 0.75 when the conditions for the…

A: If X follows binomial distribution with parameters p= 0.75 and n= 500  i.e. X ~ Bin(n,p)  Then…

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A: It was stated to assume that X is normally distributed. The mean is 1. The variance is 2. In…

Q: Use this information about the overhead reach distances of adult females: µ = 205.5 cm, σ = 8.6 cm,…

A: Consider X be the random variable that represents the overhead reach distances of adult females…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.