Learning in probability can take place not only in theoretical moments within a classroom, but also in moments of relaxation and interaction between students. Two students, Antônio and José, are playing guessing each other's birthday. Antônio gave José a tip about his birthday: he said he was born on the 31st, but not what month. What is the probability that José gets the month in which Antônio has a birthday right?

Q: Suppose 2000 students did an exam so the list of 2000 exam marks is a quantitative variable X. Also…

A:

Q: Determine whether the value is a discrete random variable, continuous random variable, or not a…

A: here AS PER GUIDELINES I HAVE CALCULATED 3 SUBPARTS  here we will use definition of random ,…

Q: A stream of data consists of four characters A, B, C, D with probabilities 0.1, 0.3, 0.2, 0.4,…

A:

Q: The probability distribution for the random variable, x, is x:2, 2.5,3.0,3.5,4.0 ,4.5 and P(x):0.07,…

A: Given information: x 2 2.5 3 3.5 4 4.5 P(x) 0.07 0.36 0.21 0.19 0.1 0.07

Q: Consider a random variable that has a uniform distribution over 32 outcomes. find the average of…

A:

Q: te (x,y) have the faire polif cewer is given by t ; of (nry) = _ hit \4 | <2, 02 ni. - \૧\ <× ૦ ×…

A: As per bartleby guidelines we can solve only first question and rest can be reposted

Q: Feeling lucky? I bet that at least two students in our class share a birthday (not including year).…

A: Given information: Number of students in the class = 40 students

Q: The probability a machine has a lifespan of more than 5 years is 0.8. Ten machines are chosen at…

A: Given that Sample size (n)=10 machines The probability that a machine has a lifetime of more than 5…

Q: p.d.f. h(x) of the random variable x is defined by h(x)=3/(4(1-x²)),-1<x< 1,Calculate the expected…

A:

Q: Suppose we want to estimate the annual high temperatures of the hottest major cities in the United…

A: The question is about sampling Introduction : Population :  The set of all measurements /…

Q: Seventy million pounds of trout are grown in the U.S. every year. Farm-raised trout contain an…

A: From the provided information, Mean (µ) = 32 Standard deviation (σ) = 7

Q: On their first date, Kelly asks Mike to guess the date of her birth, not including the year.…

A: Given that  On their first date. Kelly asks Mike to guess the date of her birth, not including the…

Q: Find the percent of the total area under the standard normal curve between the following z-scores.…

A: We have given that z = 0.75 and z = 1.3

Q: A discrete random variable has probability distribution: x= 1, 2,3,4, 5 and P(x) =0.12,0.15, 0.23,…

A: From given data we have : x 1 2 3 4 5 P(x) 0.12 0.15 0.23 0.3 0.2

Q: Example 14. X of 20 terms was found to be 35. But afterwards it was detected that two terms 42 and…

A:

Q: Coefficient 24 From the following data compute inter quartile range, quartile Deviation and of…

A:

Q: Find the z score value for a data value of 15. Z-score = ? (Round to 2 decimal places)

A: It is given that the random variable is normally distributed with  Mean, μ = 12 Standard deviation,…

Q: XYZ hospital is examining its readmission rate within one month of discharge by periodically…

A: Given information, Sample pi^ 1 0.01 2 0.04 3 0.01 4 0.03 5 0.02 6 0.01 7 0 8…

Q: Quality Progress, February 2005, reports on improvements in customer satisfaction and loyalty made…

A:

Q: Calcuate a three-period moving average forecast for June

A: Given: Period Actual Jan 545 Feb 567 Mar 568 Apr 561 May 476

Q: Part 1 of 4 What is the class width for a frequency distribution with 7 classes? The class width is…

A: Given : Number of classes = 7

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A:

Q: A researcher wishes to determine if vitamin E supplements could increase cognitive ability among…

A: Given information: The mean and standard deviation of the test scores of 400 women who took vitamin…

Q: Which of the following Python lines will import data from a CSV file called "unemployment" into a…

A: Python lines will import data from a CSV file is :

Q: In order to control costs, a company wishes to study the amount of money its sales force spends…

A:

Q: Fill in the blank. The classical approach to probability requires that the outcomes are

A: Given: The classical approach to probability requires that the outcomes are the ??

Q: a stream of Suppose that a system generates upper case alphabetic characters and that the…

A: Given information: A system generates a stream of upper case alphabetic characters and probability…

Q: B. Solve the following problems. 1. The mean of the students in Grade 1 section Newton is 125 cm and…

A:

Q: A discrete random variable has probability distribution: x= 1, 2,3,4, 5 and P(x) =0.12,0.15, 0.23,…

A: Given information: x P(x) 1 0.12 2 0.15 3 0.23 4 0.30 5 0.20 Sum 1.0

Q: Find the area under the standard normal distribution curve.

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: The set S = {x | x is a continent}. A. S = {N. America, S. America, Europe, Asia, Africa, Australia,…

A: Given:  ( The set S = {x | x is a continent}  Then write the set S

Q: given by f(z) = e²,0 <=z <=10 Calculate the probability that z is less than 0.5

A: Given information:

Q: Age 40-44 45-49 50-54 55-59 60-64 65-69 70-74 Frequency 3 11 13 16 10 6 1 Relative Frequency…

A: The objective is to complete the table that shows the ages of the chief executive officers for the…

Q: Tires are among the most commonly replaced parts on vehicles. They are not cheap and shopping for…

A: Given information: The lower bound of the 95% confidence interval of the mean mileage for the tires…

Q: The probability distribution for the random variable, x, is x:2, 2.5,3.0,3.5,4.0 ,4.5 and P(x):0.07,…

A: X 2 2.5 3 3.5 4 4.5 Total P(X=x) 0.07 0.36 0.21 0.19 0.10 0.07 1

Q: The random variables X and Y have variances Let Z= 5X-2Y. The 0.2 and 0.5 respectively. variance of…

A: Given that, the random variables X and Y have variances 0.2 and 0.5 respectively. Let Z= 5X-2Y.

Q: Engineers in a design department are assessed by their leader. A 'O' is 'Terrible' and a '5' is…

A: Given information: Score Number of staff 0 2 1 5 2 6 3 9 4 4 5 3 Sum 29

Q: A stream of data consists of four characters A, B, C, D with probabilities 0.1, 0.3, 0.2, 0.4,…

A: Given the data that has 4 characters with the probabilities 0.1,0.3,0.2,0.4. We should find the…

Q: D.d.f. h(x) of the random variable x is defined by h(x) =3/(4(1-x²)),-1<x< expected value of x.…

A: Let X be the random variable having probability distribution function (p.d.f) is,  h (x) =…

Q: Which of the following Python scripts calculates the mean of two variables, "Exam1” and “Exam2”,…

A: Python scripts for calculates the mean of two variables is :

Q: Corporation, and. Heggniesion The quien equation is es: f(x) = Gdy 20, 470 You have to first the…

A:

Q: Seth asked a random sample of 20 students how much cash they had in their pocket. The following…

A: given data,n = 20here we have to find out the sample standard deviation for grouped data, x f fx…

Q: Company A produces 10% defective products, Company B produces 20% defective products and C produces…

A: Given: P(defective|A)=0.10P(defective|B)=0.20P(defective|C)=0.05 Company choosing equally likely…

Q: A time series {yt} follows an MA(2) model: Yt = 2 + Ut +0.54t-1 + 0.4ut-2. Assume that ut is a white…

A:

Q: How many factors are in this scenario? For each clearly labeled factor, state how many levels it has…

A: From given data : we have the  the variables study condition and test type

Q: A and B are mutually exclusive events. If P(A)=0.07692 and P(B)-0.25, what is the probability P(AUB)…

A: We have given that  P( A ) = 0.07692 P( B ) = 0.25

Q: In a lot of 200 electrical fuses, 20 are known to be nonconforming. A sample of 10 fuses is…

A:

Q: 5. Please calculate the 6-month moving averages for April and May based on the following…

A: 5. Given data, Jan 10 Feb 11 Mar 12 Apr 13 May 14 June 15 July 16 Aug 17 Sep 18…

Q: A stream of data consists of four characters A, B, C, D with probabilities 0.1, 0.3, 0.2, 0.4,…

A: Given a stream of data consists of four characters A, B,C and D with probabilities 0.1,0.3,0.2,0.4.…

Q: If mean of a skewed distribution is 170 and mode is 158 , and standard deviation is 48 find…

A: