Math Answers

A population consists of the five numbers 2,5,6, 8,and 11. Consider samples of size 2 that can be drawn from the population.

A. List the possible samples and the corresponding mean.

Consider a population consisting of 2, 4, 6, 8 and 10. Suppose samples of size 3 are drawn from this population.

a. Describe the sampling distribution of the sample means

b. What are the mean and variance of the sampling distribution of the sample means?

c. Construct a histogram for the sampling distribution.

A random sample of ten measurements were obtained from a normally distributed population with mean u=6.5. The sample values are X-4.2 and s 2.

a. Test the null hypothesis that the mean of the population against the alternative hypothesis, μ = 6.5. Use a = 0.05.

b. Test the null hypothesis that the mean of the population against the alternative hypothesis, u 6.5. Use a = 0.05

Solve x² dy/dx = y² - xy. given that y = 1 when x = 1

If there are only Computer Science and Math Majors in Discrete Math, and there

are 4 Computer Science Majors, 15 Math Majors, and 8 student who are double

majors in Math and Computer Science, how many people are enrolled in discrete

math.

Question

A 33​-term series is written using only the integers +9 and −2. How many such series can be written that have a sum of​0?

Answer

The number of series that can be written is 1 107 568.

Request and Details

Can you please provide a process for solving this question? It may involve permutations and combinations.

prove that n! > 2n for n a positive integer greater than or qual to 4 what is the base step

A town has a population of 18000 and grows at 2% every year. What will be the population after 11 years, to the nearest whole number?

An insurance company found that 45% of all insurance policies are terminated before their maturity date. Assume that 10 polices are randomly selected from the company’s policy database. Assume a Binomial experiment.

Required:

a) What is the probability that eight policies are terminated before maturity?

b) What is the probability that at least eight policies are terminated before maturity?

c) What is the probability that at most eight policies are not terminated before maturity?

IQ tests are measured on a scale which is 𝑁(100,225). A woman wants to form an

“Computer Society” which only admits people with the top 1% of IQ scores. What would

she have to set as the cut-off point in the test to allow this to happen?