Can you show and explain what it means to take first difference of a time series

Q: Find the probability of obtaining exactly two tails when flipping three coins. Express your answer…

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Q: If the event is a number "5" turning in rolling a die, simulate rolling a die for 1000 times with…

A: Given Event is number 5 turning in rolling a die. The total number of possibilities when we roll a…

Q: 10) On Mr. Legutko's (and anybody's) 40th birthday, approximate how many seconds he was alive at…

A: We know, 1 minute = 60 seconds 1 hour = 60 minutes So, 1 hour = 60×60 seconds = 3600 seconds   1 day…

Q: A powerful computer is puchased for $ 2000, nut loses 20% of its value each year. 1. is this an…

A: Given; Initial value=$2000 Growth/decay rate=20% Time=4 years. 1. This is an example of exponential…

Q: In time series, what is Persistence of shock (infinite memory)?

A: In time series, the term persistence is related to the notion of memory properties of time series.…

Q: What does the law of large numbers (Bernoulli) predict will be the percentage of heads if you flip a…

A: Probability of getting a head p = 0.5Sample size, n = 500Predicted Number of heads is given by E(X)…

Q: A plane flies over the ocean in search of schools of fish. On any given day, there is a 0.098 chance…

A: 1a) chance of finding one or less schools of fish =1-P(findng 2 or more) =1-0.098 =0.902

Q: Which component of time series can be considered to be present due to the occurrence of busines: or…

A: Seasonal variations are those variations that tend to repeat themselves over a period of time…

Q: The genotype of an organism can be either normal (wild type) or mutant. Each generation, a wild type…

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

Q: Find the probability that a randomly selected passenger has a waiting time less than 2.75 minutes. |…

A: Given: Waiting time is uniformly distributed between 0 and 9 minutes.

Q: Extrapolating the Past If the number of bacteria in a culture is 5 million at the end of 6 hours and…

A: Bacteria grows at an exponential way .Pt=Poektwhen t=6 hours , P6=5 million         t=9 hours ,…

Q: 2: Find 75, accurate to two decimal places, by using fixed-point iteration.

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Q: Determine the probability that the interval between succeeding messages is more than an hour.

A: On the day before an exam in an online class, students e-mailed questions to the professor at a rate…

Q: A group of people were asked if they had run a red light in the last year. 266 responded "yes", and…

A: Given that 266 responded "yes", and 400 responded "no".So total (266+400)=666 people were surveyed.

Q: A 3-sided die is rolled twice and each time a number is recorded. Find the theoretical probability…

A: It is given that 3-sided is rolled twice and each time a number is recorded.

Q: A binomial experiment is performed a fixed number of times. What is each repetition of the…

A:

Q: In a very delicate operation, the only chance of survival is 80 percent. Find the probability that…

A: 90% of 10 patients is X= 90*10/100 = 9 X= 9  We've to find the probability that exactly 9 patients…

Q: Suppose So(x) = max(0, 13000–102-0.8r- 15000 where age x is %3D measured in years. Calculate the…

A: I think to solve this problem using Bayes theorem will be a good idea. Let us consider that the…

Q: A time series trend equation is 23 + 73x. What is your forecast for period 20?

A: Given time series equation T(x)= 23+ 73x

Q: What is a random walk model? Explain stationarity of a time series ? how this property of time…

A: A “random walk” is a statistical phenomenon where a variable follows no discernible trend and moves…

Q: What is the difference between the actual and forecasted values of a time series called?

A: We know that there always be difference between actual and forcasted value of time series.

Q: A total of 1050 patients were seen in the ER during the first six months of a non-leap year.…

A: Given, A total of 1050 patients were seen in the ER during the first six months of a non-leap year.…

Q: A simple aggregate index compares the sum of values in the current period to the sum of values in a…

A:

Q: Describe models of a time series.

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Q: The future lifetime at birth is de Moivre's Law on [0,95). If 8 = 0.05. Calculate āz.

A: Given: The future life time at birth is de Moivre's Law on [0,95] ς=0.05 Formula used: Sxx=1-xw…

Q: Each day a machine is put in operation for five hours. Suppose that the number of hours of operation…

A: The number of hours of operation until failure of the machine follows Exponential with mean 4 hours.…

Q: A certain forest covers an area of 4200 km². Suppose that each year this area decreases by 6.25%.…

A: Given Initial Area                  A(i)=4200km2 Rate Of Decreasing                   r=6.25%…

Q: Find the probability of obtaining exactly seven tails when flipping eight coins.  Express your…

A:

Q: A variable which depends upon time factor will give rise to a O a. Cyclical fluctuation O b.…

A: Time series is a sequence of data points taken as successive equally spaced points in time. The…

Q: If time between two ATM transaction is exponentially distributed with Lambda = 1 minutes. find the…

A:

Q: Suppose someone began counting a federal debt of approximately $15 trillion, $3 at a time. If he…

A: Given a federal debt is approx. $15 trillion, and counts $3 each second.  So, No of seconds=Total…

Q: A “tricky” coin behaves just like a normal coin with each toss resulting in a “head” or a “tail”…

A: Given: A “tricky” coin behaves just like a normal coin. So, if a tricky coin is fair, the…

Q: Estimated time: 10 mins In a city, 70% of people have jobs. 10% of the people who have jobs are…

A: Bayes' Theorem: Let A1, A2, ... , An be n mutually exclusive and exhaustive events with P(Ai) > 0…

Q: A fair coin is tossed until either the sequence HHH occurs in which case I win or the sequence THH…

A: According to the question, a fair coin is tossed 3 times. The total number of outcomes = 2^3 = 8.…

Q: At an Ingo Armenia call center, calls come in at an average rate of one call every 4 minutes. Assume…

A: Given,A random variable X~Exponetial(λ=14)and the CDF of X isF(X)=P(X≤x)=1-e-xλ ; x≥0

Q: If the event is a number '5' tuming in rolling a die, simulate rolling a die for 1000 times with…

A: Given Event is number 5 turning in rolling a die. The total number of possibilities when we roll a…

Q: are cross-sectional or time-series:

A:

Q: First Die 4 6. 1 3 4 6. 7 3 4 5. 6. 7. 8. 4 5. 6. 7 8. 9. 4 6. 7. 8. 9. 10 5 6. 8 6. 10 11 8. 9. 10…

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Q: A group of people were asked if they had run a red light in the last year. 210 responded "yes", and…

A: The probability of an event A can be found using the formula: PA=nFnT Here,  nF is the number of…

Q: Find the probability of obtaining exactly four tails when flipping four coins. Express your answer…

A: From the provided information, Number of trials (n) = 4 Probability of getting tails (p) = 1/2 X~B…

Q: find the probability of choosing a letter other than N from a bag that contains the 15 letters of…

A: The probability of choosing a letter other than the letter N from a bag is,

Q: A group of people were asked if they had run a red light in the last year. 342 responded "yes", and…

A: Given that a group of people were asked if they had run a red light in the last year.  342 responded…

Q: Assume that the probability of a boy being born is the same as the probability of a girl being born.…

A: Given data:   The expression for the probability of a boy being born is the same as the probability…

Q: Ex. 2: If particles are emitted from a radio active source at the rate of 20 per hour find the…

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Q: Suppose a city with population 100,000 has been growing at a rate of 8​% per year. If this rate​…

A:

Q: what the meaning of a temporal decay rate of 0.5 day^-1

A: According to the given information, it is required to define the meaning of:

Q: Scenario: A population of 30 mice is expected to double each year. The number p of mice in the…

A:

Q: A group of people were asked if they had run a red light in the last year. 200 responded "yes", and…

A: P(A) = n(A)n(S)