The expected value of an accountant's profit and loss analysis is 0. Explain what this means

Q: Describe the statistical techniques of Moving Averages and Exponential Smoothing?

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Q: Briefly discuss how ANCOVA is different from ANOVA.

A: ANOVA is an effective technique for carrying out researches in various disciplines like business,…

Q: The mean can be thought of as the balancing point of a distribution. According to this description,…

A: Mean          A mean is the simple mathematical average of a set of two or more numbers. The mean…

Q: Why is the Method of Moments estimator, in mathematical statistics, consistent?

A: Given that:  Method of Moments estimator, in mathematical statistics:

Q: Find the expected value for the monthly income

A: Expected value of a Random Variable is given by E(X) = ∑xxP(x)

Q: How are total risk, non-diversifiable risk, and diversifiable risk related? Why is non diversifiable…

A: The total risk of a security is the combination of non diversifiable risk and diversifiable risk.…

Q: What is the expected expense of the machine being used 34 hours per week?

A: Regression line are used to predict the variable. It is calculated by the combined value of…

Q: Over the past 100 days, the price of a certain stock went up on 60 days and went down on 40 days.…

A: Any statistical report should provide with the necessary values along with the conclusion, so that…

Q: The manager of a supermarket tracked the amount of time needed for customers to be served by the…

A: Let X be the random variable representing the checkout time. Here, X ~ Exponential( with mean of 5…

Q: Explain what expected value means in your own words.

A: To explain about expected value.

Q: Why is probability theory important to statistics?

A: The probability of an event:The probability of an event is obtained as the ratio of favourable…

Q: Define the concept of expected value?

A: The expected value of the random variable is nothing but the mean value of the random variable. It…

Q: Explain in general terms the relationship that exists between the Poisson and exponential…

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Q: c. Why will the standard deviation not be a good measure of risk when returns are negatively skewed?

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

Q: What is the expected average increase in charitable donations given a ten thousand dollar increase…

A:

Q: expected

A: Here given,  An Insurance company sells a 1-year term life insurance policy to an 76-year-old woman.…

Q: What is the new version of standard error?

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Q: Marriot Hotel noticed a decrease in customers' repea- business accompanied by an increase in…

A: Dependent variable is the variable which depends on the another variable. Increase or decrease in…

Q: Is the geometric mean the measure of central tendency which can be used to compute the average rate…

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Q: What is the key property of Standard Error of Estimate?

A: Introduction: The standard error is a measure of dispersion, based on the sampling distribution of…

Q: Describe the statistical pattern by which customers are generated over time must also be specified?

A: Queuing theory are used to measure the waiting, service level, service, waiting time, system etc.,…

Q: Explain "leverage"?

A: From the given information, we need to explain leverage.

Q: Besides measuring change in the prices of goods and services, the Consumer Price Index has a number…

A: Use of index number 1 measure the change in money value 2. To measure the cost living 3. To measure…

Q: How do you determine the mean annual return?

A: The mean of any given data is nothing but the average of the data.Let X1, X2 , X ,....., Xn are n…

Q: What is meant by the grand mean?

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Q: Odds ratio can be used to approximate the relative risk when the disease under study is rare.  True…

A: Odds ratio can be used to approximate the relative risk when the disease under study is rare.

Q: Consider  a business owner, how would you use methodology and the data results to increase sales or…

A: Linear Regression:Linear regression is a method used to establish a relationship between the…

Q: Explain cumulative error?

A: Introduction Statistics is a discipline which involves collection of the data, organizing and…

Q: What is the definition of "median net worth?".

A: The median is when you rank those values and find the middle.

Q: Determine the mean profit per store. ( rou

A: Given that  Chain Number of stores Total profit ($) Moonbucks 34 2896 Tom Horton's 20 1740…

Q: Discuss the importance of collecting reliability data from a customer’s point of view.

A: The customers value data privacy and so the reliability data can be a value add. A customer will…

Q: Can statistical concepts help in daily life?

A: Statistical concepts are used to describe the features or behaviors of the data. Statistical…

Q: d to calc

A: Rate of Return for an investment A variance of stock measures the difference between stock returns…

Q: Which are the ultimate tools that are being brought in business analytics?

A: 1. Sisense 2. Zoho Analytics

Q: Explain if the Income and Wealth carry the expected sign.

A: Consumption Expenditure is the money spent by people on household activities i.e. buying goods and…

Q: The manager of a supermarket tracked the amount of time needed for customers to be served by the…

A: From the provided information, The checkout times are exponentially distributed with a mean of 5…

Q: Why can’t the following mode predict 100% of the variability in the price of a used Corolla?

A: A model is said to predict 100% of the variability in the data if all the points of the data set…

Q: Use the table above to calculate the expected value.

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Q: Suppose that the length of long distance phone calls, measured in minutes, is known to have an…

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Q: Write down the STANDARD ERROR OF ESTIMATE (COMPUTATION FORMULA)?

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Q: Explain the cumulative distribution function.

A: To: Explain the cumulative distribution function.

Q: What is the mean and variance of a variable that follows the binomial distribution?

A: Let X be the random variable follows binomial distribution.  X ~ Binomial (n, p)

Q: Scatter can be summarized using the standard error of estimate?

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Q: Most observers object to the pay gap when top CEO pay is tied to performance. a) True ) b) False

A: Given statement is - most observers object to the pay gap when top CEO pay is tied to performance

Q: What is the absolute risk? Give an example of how it is interpreted.

A: We have to define absolute risk and also have to interpret it using an example

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.