Your math professor receives several student emails each day. The probability model shows the number of emails your professor receives from students in a given day.

1. How many emails should your professor expect to receive daily? Round your result to the nearest hundredth.
2. What is the standard deviation of the number of emails your professor should expect to receive? Round to the nearest hundredth.
3. If it takes your professor an average of 7 minutes to reply to each email s/he receives, how many should your professor expect to spend responding to student emails in a given day?
4. Your English professor expects the same mean number of emails with the same standard deviation. What is the mean and standard deviation of the difference in the number of emails the professors will receive.

Mean:

Standard Deviation:

(a) If you roll a single die and count the number of dots on top, what is the sample space of all possible outcomes? Are the outcomes equally likely? (b) Assign probabilities to the outcomes of the sample space of part (a). Do the probabilities add up to 1? Should they add up to 1? Explain. (c) What is the probability of getting a number less than 5 on a single throw? (d) What is the probability of getting 5 or 6 on a single throw?

1. In C++, Mrs. Jones wishes to computerize her grading system. She gives 5 tests but only counts the 4 highest scores. Input the 5 test scores and output the average of the highest four. And using the following grading scale, 90-100 A, 80-89 B, 70-79 C, 60-69 D, and below 60 F, output the student’s letter grade. After creating this code, Modify the above to calculate the grade for all students in the class. The first input value will be the number of students in the class. You will then need to use a loop to input the students’ names as well as their 5 grades. Inside the loop (after calculating the average for the student) you will need to add each student’s average to a sum variable because at the end, you will need to print out the class average as well as each students’ names and letter grades.

Write program for the exercise 11(Sales Analysis) as explained at the end of the chapter.

11. sales Analysis The file SalesData.txt, in this chapter’s source code folder, contains the dollar amount of sales that a retail store made each day for a number of weeks. Each line in the file contains seven numbers, which are the sales numbers for one week. The numbers are separated by a comma. The following line is an example from the file: 2541.36,2965.88,1965.32,1845.23,7021.11,9652.74,1469.36 Write a program that opens the file and processes its contents. The program should display the following:

• The total sales for each week

• The average daily sales for each week

• The total sales for all of the weeks

• The average weekly sales

• The week number that had the highest amount of sales

• The week number that had the lowest amount of sales

Other Requirements:

The program file name must be: SalesAnalysisDemo.java

The data file that your program opens must be named as: SalesData.txt

Sample Data File attached here  SalesData.txt

1245.67,1490.07,1679.87,2371.46,1783.92,1461.99,2059.77
2541.36,2965.88,1965.32,1845.23,7021.11,9652.74,1469.36
2513.45,1963.22,1568.35,1966.35,1893.25,1025.36,1128.36
1867.24,3124.20,1301.09,1489.27,1822.45,2111.89,1425.56
3296.54,9147.88,1801.45,0866.77,2001.21,0096.24,1156.83
2513.45,1963.22,1568.35,1966.35,1893.25,1025.36,1128.36

Test Case:

Weekly sales from week 1 is $12092.75
Average for week 1 is $1727.54
Weekly sales from week 2 is $27461.00
Average for week 2 is $3923.00
Weekly sales from week 3 is $12058.34
Average for week 3 is $1722.62
Weekly sales from week 4 is $13141.70
Average for week 4 is $1877.39
Weekly sales from week 5 is $18366.92
Average for week 5 is $2623.85
Weekly sales from week 6 is $12058.34
Average for week 6 is $1722.62
Total sale of all weeks = 95179.05
Average weekly sales = 15863.17
The week number with the highest amount of sales is: 2
The week number with the lowest amount of sales is: 3

continuous random variable and uniform distribution

please follow the comment. A random number generator spits out a random real number in the range [1,4]

assume each number is equally likely being out.

what is the probability that the model output an irrational number?

the answer is 1, but i don't understand

Approximately 45% of Baby Boomers—those born between 1946 and 1964—are still in the workforce (www.pewresearch.org, May 11, 2015). Six Baby Boomers are selected at random.

a.What is the probability that exactly one of the Baby Boomers is still in the workforce?

b.What is the probability that at least five of the Baby Boomers are still in the workforce?

c.What is the probability that less than two of the Baby Boomers are still in the workforce?

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d.What is the probability that more than the expected number of the Baby Boomers are still in the workforce?

what is the standard deviation?

what is the mean?

Which one is the parameter of a binomial distribution? Choose all applied.

Which one is the characteristics of Bernoulli process? Choose all applied.

Which one is the binomial process? Choose all applied.

Research the many causes of chronic renal failure. What is the connection between the causative agent and damage to the kidney be specific. discuss the current treatments, Including their advantages and disadvantage for instance dialysis removes waste products from the body. does ir also remove substances that are needed? if so, which ones and how are these issues dealt with medically?