q21- Gender is an example of a continuous random variable. Select one: True False

Q: The number of telephone calls that arrive at a call center is often modeled as a Poisson random…

A: Solution: Let X be the number of calls in three hours. From the given information, the number of…

Q: Find P(7<X<9) if X is a Uniform Random Variable with possible values between 4 and 12. Write answers…

A: Given X~U(4,12)

Q: a) Calculate the covariance of Y₁ and Y₂. b) Are Y₁ and Y₂ independent? Are two uncorrelated random…

A: The given table:   Y1 -1 0 1 Y2 -1 1/16 3/16 1/16 0 3/16 0 3/16 1 1/16 3/16 1/16…

Q: According to a recent poll, half of all pet owners would get their next dog or cat from a shelter.…

A: Note- Since parts a, b, and c are correctly answered so I am giving a solution for part (D) only.

Q: Time spent using e-mail per session is normally distributed, with u = 11 minutes and o = 3 minutes.…

A: According to the provided information, Mean (μ) = 11 Standard Deviation (σ) = 3 Sample Size (n) = 25

Q: In large corporations, an "intimidator" is an employee who tries to stop communication, sometimes…

A: State the hypotheses. That is, there is no evidence to conclude that population mean time lost due…

Q: The daily amount of coffee, in liters, dispensed by a machine located in an airport lobby is a…

A:

Q: Let xbe a binomial random variable with a variance of 0.48, q 0.6 andn32. Find the probability that…

A:

Q: The number of tweets received by a certain Twitter user is a Poisson random variable with a mean…

A:

Q: Let X be a discrete random variable and Y be a continuous random variable. Which of the following…

A: Let us consider the X to be a discrete random variable and Y to be a continuous random variable. We…

Q: 10% of HCT students have overweight. 20% of HCT students get grades greater than or equal to A-. One…

A: Given that: 10% of HCT students have overweight. This means P(overweight)= 10%=0.10

Q: A raffle ticket costs ₱150.00 and there are two thousand tickets to be sold. Only one ticket holder…

A: Cost for 1 ticket = $150 Total number of tickets to be sold = 2000…

Q: For a discrete geometric random variable X with probability p=0.77, what is the probability that…

A: Given: Probability of success (p) = 0.77 Consider X be the random variable that follows the…

Q: Identify the following as a discrete random variable, continuous random variable, or not a random…

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

Q: Let X be a binomial random variable. with parameters (n, p). Find P(X > 1) if n = 5 and p = 0.3 %3D…

A: Given,n=5p=0.3X~Binomial(n=5 , p=0.3)P(X=x)=cxn px(1-p)n-x ; x=0,1,2,.....n

Q: Identify the given random variable as being discrete or continuous. The braking time of a car

A:

Q: 2. In each case below, identify the random variable and classify it as discrete or continuous: a.…

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

Q: Which is a discrete random variable? X= ^ n Welght of the microprocessor Inside your computer" Y =…

A: A variable can either be continuous or discrete.

Q: In large corporations, an "intimidator" is an employee who tries to stop communication, sometimes…

A: (i) We have done the calculations for the sample means and standard deviations using an fx-82MS…

Q: Z is a standard normal random variable. The P(-1.96 Z -1.4) equals

A:

Q: The length, X, of a fish from a particular mountain lake in Idaho is normally distributed with μ=7.4…

A:

Q: The number of telephone calls that arrive at a phone exchange is often modeled as a Poisson random…

A:

Q: Let X represent the number of heads that can come up when tossing a coin in two cases: twice and…

A: Solution-: We find sample PMF when tossing a coin in two cases: twice and thrice times

Q: All of the following are examples of discrete random variables except _ population of a city O time…

A: We have given the following statement about the discrete  random variable.  Note: According to…

Q: Exercise 50 (i) Let Xn Poisson(10), n > 1, be independent random variables. Estimate the probability…

A: Hey there! Both teh questions are different. As per our policy we can answer only 1 ques at a time.…

Q: A laundry shop averages 9 customers per hour. Assume that the number of customers is a Poisson…

A:

Q: Is the random variable given in table discrete or continuous? Number of Girls in Four Births Number…

A: we can see that given probability distribution table gives probability for fixed points x= 0,1,2,3,4

Q: During the summer semester , students can register for no more than three classes. Identify the…

A: It is given that the, During the summer semester, students can register for no more than three…

Q: Which of the following random variables is continuous?

A: A variable is said to be continuous if it can take any value in an specified interval.

Q: The mumber students who enter a Library in an hour is a poisson random variable. and suppose that…

A:

Q: The number of tweets received by a certain Twitter user is a Poisson random variable with a mean…

A:

Q: For a discrete random variable which takes on nonnegative values (0, 1,2,3, . . .) such as the…

A: whether the given statement is true or false

Q: (b) Find a 90% confidence interval for - 2. (Round your answers to two decimal places.) lower limit…

A: Confidence Interval: In statistics, we can say a range of values of the specified population…

Q: An ITU student goes to the dining hall to eat, and there is either 0 or 1 person in the line…

A: When there are 0 people in line, the waiting time is zero. When there is a person in line, the…

Q: Consider, the number of WhatsApp messages in your cell phone, as a random variable. Collect a data…

A: Assume that the after collecting the data, the average number of messages per hour came out to be…

Q: In large corporations, an "intimidator" is an employee who tries to stop communication, sometimes…

A: (i) We have done the calculations for the sample means and standard deviations using an fx-82MS…

Q: The number of accidents at a certain intersection is a Poisson random variable. The probability that…

A: we have given that  The probability that there are 2 accidents in any given week is 3 times as much…

Q: Identify all possible realizations of each random variable. Let Z be the lifetime of a newborn…

A: The realization of a random variable is continuous thus it can range between 0 &lt; Z &lt; n , where…

Q: The number of lost-and-found requests received each day by a railroad ticket office is a random…

A: Solution: a. Let X be the number of lost-and-found requests received each day by a railroad ticket…

Q: Classify the following random variables as discrete or continuous. the number of students enrolled…

A: Discrete variable: The type of data that can take a countable number of distinct numerical or…

Q: Consider the random variable  X ~ N(83, 72) Use the fact below to find the 88th percentile of X.…

A: According to the given information in this question We need to find 88th percentile

Q: he mumber of failures of a testing instrument from contamination particles n the product is a…

A: Here use poission distribution formula

Q: Q3. number of trials until the first success in a sequence of Bernoulli trials. Evaluate P(X = Y)…

A: Geometric Distribution: Let there is a sequence of trials, each having two outcomes, say Success and…

Q: Which one of these variables is a continuous random variable?

A: Continuous variables are those variables which can take any value in an specified interval. Discrete…

Q: What is the mean of this discrete random variable? 2 3 4. 0.05 0.35 0.20 0.35 0.05 P(x)

A:

Q: Determine whether the following value is a continuous random variable, discrete random variable, or…

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

Q: The random variable x represents the number of phone calls an author receives in a day, and it has a…

A:

Q: Q3: Find the expectation and the variance of X, where X is binomial random variable X ~ Binomial(n,…

A: Given: To be find the expectation and the variance of x, X~Binomial (n,p),VarX

Q: The number of telephone calls that arrive at a phone exchange is often modeled as a Poisson random…

A:

Q: The number of failures of a testing instrument from contamination particles on the product is a…

A: Assume, X be the random variable representing the number of failures occurred during any given…