Question

In: Advanced Math

Discreet Math Question: Suppose you have 100 students in school. Principal wants to take photos in...

Discreet Math Question:

Suppose you have 100 students in school. Principal wants to take photos in different ways so that every student thinks they have been treated fairly.

1.She wants to divide 100 students into groups of 10 and take one photo of each group. So no student is in more than one photo and she doesn't care how they are lined up. How many photo are going to need to be taken in this situation?

2. She has a new idea that includes three of the schools teachers. She still wants to divide the 100 students into groups of 10. With each student, they will take a picture with every possible way to choose two of the three teachers, with one on the left and other on the right (So Order Matters). How many photos are going to be needed in this situation?

Solutions

Expert Solution

Colby Messinger answered 2 years ago
Next > < Previous

Related Solutions

The principal of a large high school wants to estimate the proportion of students who skip...
The principal of a large high school wants to estimate the proportion of students who skip more than 10 days of school in a year. A random sample of 100 students from a population of 1800 showed that 8 students skipped more than 10 days of school last year. The upper limit (to four decimal places) of a 95% confidence interval for the proportion of students who skip more than 10 days of school in a year is
Suppose you plan to take a survey of math students asked about their overall grades. 22...
Suppose you plan to take a survey of math students asked about their overall grades. 22 students were surveyed, and it was found that the average GPA of the 22 sampled students was a 3.2, with a standard deviation of 0.9 points. Suppose you want to re-sample the population to reduce the margin of error. If you plan to calculate a 90% confidence interval for the true mean GPA of math students, how many samples would be necessary to reduce...
Suppose that a principal of a local high school tracks the number of minutes his students...
Suppose that a principal of a local high school tracks the number of minutes his students spend texting on a given school day. He finds that the distribution of minutes spent texting is roughly normal with a mean of 60 and a standard deviation of 20. Use this information to answer the following questions. 1. Based on the statistics, what is the probability of selecting at random a student who spends an extreme amount of time texting – either less...
Suppose that a principal of a local high school tracks the number of minutes his students...
Suppose that a principal of a local high school tracks the number of minutes his students spend texting on a given school day. He finds that the distribution of minutes spent texting is roughly normal with a mean of 60 and a standard deviation of 20. Use this information to answer the following questions. 1. Based on the statistics, find the two numbers of minutes that define the middle 95% of students in the distribution. What is the value for...
A small school has 100 students. You have been commissioned school photographer. 1. You have been...
A small school has 100 students. You have been commissioned school photographer. 1. You have been offered to photograph a model action shot for a salary of $100 on the same day as the school photos are scheduled. You can’t do both. What is the limited resource, and as what kind of cost do you consider the missed salary of this photoshoot? 2. Without calculating, do you think parents’ price elasticity of demand for photos of their children is generally...
11. Suppose a school principal is trying to increase academic outcomes by providing snacks to students....
11. Suppose a school principal is trying to increase academic outcomes by providing snacks to students. She is allocating her money between two snack inputs: bananas and yogurt. She has a budget of $400. A carton of bananas costs $40, and a bundle of yogurts costs $50. a) Draw the principal’s budget constraint, putting bananas on the x-axis and yogurts on the y-axis. Write down the equation for the budget constraint. b) Suppose productive efficiency occurs at the point where...
A school district developed an after-school math tutoring program for high school students. To assess the...
A school district developed an after-school math tutoring program for high school students. To assess the effectiveness of the program, struggling students were randomly selected into treatment and control groups. A pre-test was given to both groups before the start of the program. A post-test assessing the same skills was given after the end of the program. The study team determined the effectiveness of the program by comparing the average change in pre- and post-test scores between the two groups....
Question 6 A high school math teacher believes that male and female students who graduated from...
Question 6 A high school math teacher believes that male and female students who graduated from the school perform equally well on SAT math test. She randomly chooses 10 male students and 10 female students who graduated from this school. The following are the SAT math scores of the 20 students: Male: 23, 30, 27, 29, 22, 34, 36, 28, 28, 31 Female: 22, 33, 30, 28, 28, 31, 34, 25, 29, 21 Give a 95% confidence interval for the...
Question 6 (1 point) A high school math teacher believes that male and female students who...
Question 6 (1 point) A high school math teacher believes that male and female students who graduated from the school perform equally well on SAT math test. She randomly chooses 10 male students and 10 female students who graduated from this school. The following are the SAT math scores of the 20 students: Male: 23, 30, 27, 29, 22, 34, 36, 28, 28, 31 Female: 22, 33, 30, 28, 28, 31, 34, 25, 29, 21 Give a 95% confidence interval...
Question 5 (1 point) A high school math teacher believes that male and female students who...
Question 5 (1 point) A high school math teacher believes that male and female students who graduated from the school perform equally well on SAT math test. She randomly chooses 10 male students and 10 female students who graduated from this school. The following are the SAT math scores of the 20 students: Male: 23, 30, 27, 29, 22, 34, 36, 28, 28, 31 Female: 22, 33, 30, 28, 28, 31, 34, 25, 29, 21 Test the teacher's claim. What...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT