What value does the average always standardize

Reference no: EM1378439

For problems 1-5, standardize the value according to the given average and SD.

1. x = 10, average = 5 and SD = 2.

2. x = 73, average = 69 and SD = 3.

For problems 6-10, unstandardize the value according to the given average and SD.

3. z = -2.3, average = 160 and SD = 20.

4. z = 3.1, average = 2 and SD = 0.1.

5. To what value does the average always standardize?

For problems 12-16, find the area under the standard normal curve corresponding to the given range.

6. z between 1.2 and 1.8

7. z greater than 0.4

8. Attendance for a high school's football games is approximately normal, with an average attendance per game of 1,000 fans and an SD of 200. If the school charges $10 per ticket, about what percentage of the time does the school have a revenue of more than $12,500?

9. The times that the city bus arrives at a certain apartment complex each morning are approximately normally distributed, with an average time of 7:30 AM and a standard deviation of 10 minutes.

a) About what percentage of the time will the bus arrive between 7:25 and 7:35?
b) About what percentage of the time will the bus arrive between 7:15 and 7:45?
c) If you want to have a 95% certainty that you will catch the bus (that is, you arrive before the bus does), what time should you arrive at the stop?
d) 90% of the time, the bus will arrive no later than _________.

10. Final exam scores for a college statistics class were approximately normally distributed, with an average of 72% and an SD of 8%.

a) About what percentage of the class got better than an 80%?
b) About what percentage of the class got less than a 60%?
c) One student scored an 87%. What percentile rank did he have in the class?
d) Find the 75^th percentile score for the test.

Reference no: EM1378439

Questions Cloud

Liberal arts program in a distance learning format : Write to a board of a small university with the target of convincing them to put their Liberal Arts event into a distance learning format.

Minimizing total transportation and carrying costs : An appliance producer has a plant near Toronto that earns small electric motors from a manufacturer located in Winnipeg. The demand for motors is 120,000 units every year.

Concept of minimizing the shipping cost : Estimate which shipping option would be most economical to ship eight boxes of parts when each box has a price of $200 and the yearly holding costs are 30% of price,

Identify the title of the article : Management should show the employees that there are integrity and morality, especially those large one because its so large its often hard for

What value does the average always standardize : Standardize the value according to the given average and SD - unstandardize the value according to the given average and SD

Identifying and dealing with resistance : Suppose you are the Senior Vice President of Marketing at Nike. You have a famous NBA star under contract to market Nike items.

Analyse cultural issues facing the la napoli restaurant : Critically analyse the cultural issues facing the ‘La Napoli' restaurant - Present a report on La Napoli Case Study

Developing training program questions : A paragraph for each question indicating the extent to which each question is likely to stimulate useful discussion of this topic and explain your answer.

Analyze the audience and state the objectives : Assume you have a meeting with a distance learning investment corporation's Chief Executive Officer and a few other high-ranking officers.

User Account

All Pages