1.Explain what variance and standard deviation is. 2 explain the empirical rule in easy words 3....

1.Explain what variance and standard deviation is.

2 explain the empirical rule in easy words

3. How does the interquartile range and normal distribution relate?

Expert Solution

orchestra answered 2 years ago

1-Explain the empirical rule in your own words. How many standard deviations would it take for...

1-Explain the empirical rule in your own words. How many standard deviations would it take for you to consider a value to be statistically different? 2- Explain the four different types of sampling and give an example of each.

(a) what is an empirical rule (b) why is empirical rule useful (c) Can the empirical...

(a) what is an empirical rule (b) why is empirical rule useful (c) Can the empirical rule be used on any population, why and why not? A common way that statistics are misinterpreted or misleading, depending on how it's presented or when people assume relationships that exist at a group level held at the individual level. You are required to search for examples of misleading statistics, post a link to the article/ example, and discuss why and how it is...

Using the following 3 securities calculate: 1. Expected return 2. Variance 3. Standard deviation 4. Correlation...

Using the following 3 securities calculate: 1. Expected return 2. Variance 3. Standard deviation 4. Correlation between all possible pairs 5. Covariance between all possible pairs Probability Stock A Stock B Stock C .2 14% 29% 4% .2 11% 21% 9% .2 5.25% 25% 14% .4 -3% 10% 20% Using the following percentages, calculate the portfolio variance and expected return for each portfolio. Portfolio Stock A Stock B Stock C 1 40% 60% 2 60% 40% 3 35% 30% 35%

1. What is the mean and median? 2. what is the standard deviation? 3. what is...

1. What is the mean and median? 2. what is the standard deviation? 3. what is the minimum and maximum at a minimum? Years Weekend Daily Tour Income Daily Gross Revenue Number of Tourists 1 Friday 3378 4838.95 432 1 Saturday 1198 3487.78 139 1 Sunday 3630 4371.3 467 2 Friday 4550 6486.48 546 2 Saturday 2467 3437.39 198 2 Sunday 3593 4571.43 452 3 Friday 898 2515.15 119 3 Saturday 2812 5462.11 342 3 Sunday 2650 5498.89 321 4...

1 - What is the range, expected rate of return, variance, and standard deviation of the...

1 - What is the range, expected rate of return, variance, and standard deviation of the information below? Economic Condition Probability Expected Return Better than expected 0.15 0.65 Good 0.25 0.3 Average 0.45 0.15 Poor 0.1 -0.15 Terrible 0.05 -0.35 2 - A stock has a beta of 1.65, risk-free rate of return of 0.04, and a market risk premium of 0.15. What is the required rate of return?

WHAT IS THE A. MEAN B. THE VARIANCE C. THE STANDARD DEVIATION

WHAT IS THE A. MEAN B. THE VARIANCE C. THE STANDARD DEVIATION Respondent QUESTION 1 QUESTION 2 QUESTION 3 QUESTION 4 QUESTION 5 QUESTION 6 QUESTION 7 QUESTION 8 OBESE? A 2 1 2 1 3 4 3 2 N B 1 2 1 5 3 1 3 5 N C 2 5 3 3 3 3 4 2 N D 2 4 3 3 3 3 3 5 N E 2 4 4 1 5 3 4 2 N...

what does the variance and standard deviation tell us?

What is the empirical rule? How is it useful?

What is the relationship of variance and standard deviation to the mean, median and mode?

1.Given a sample of the following values, what is the variance and standard deviation? {15, 5,...

1.Given a sample of the following values, what is the variance and standard deviation? {15, 5, 14, 11, 5} 2. Given the Contingency table below, calculate the probability that an individual drawn randomly would be Under 40 and wants a Smart Phone as a prize. Table of Prize Choice by Age Chosen Device Smart Phone Smart Watch Totals Ages Under 40 30 80 110 40 and Up 50 40 90 Totals 80 120 200

Question