Math Answers

How many ways can a club select a president, vice president, and a secretary from a group of 9 people?

Construct a combinatorial circuit using inverters, OR gates, and AND gates that produces the output

((¬p ∨¬r) ∧¬q) ∨ (¬p ∧ (q ∨ r)) from input bits p, q, and r.

Please help me with this answer

♠️=7

♦️=5+♠️

♠️=1+♣️♣️♣️

♠️+♦️+♣️=?

random samples with sise 4 are drawn from the population containing the values 14, 19, 26, 31, and 53 

1. construct a sampling distribution of the sample means.
2. find the mean of the sample means.
3. compute the standard error of the sample means.

Professor Z conducted a periodic examination on all his students enrolled in Math 11. The scores are normally distributed with a population standard deviation of 10. He randomly selected 125 students and obtained a mean score of 60.

 a, What is the population of interest?

 b. What is the point estimate of the population mean?

 c. Compute the standard error of the mean.

 d. At 95% confidence level, what is the margin of error?

 e. Find the 90% confidence interval for the population mean.

 f. Find the 95% confidence interval for the population mean.

 g. Find the 98% confidence interval for the population mean.

random samples with sise 4 are drawn from the population containing the values 14, 19, 26, 31, and 53 

Round the answer to this question to the nearest rand. David borrowed R911 012,00 to refurbish his holiday

home. The loan requires monthly repayments over 12 years. When he borrowed the money, the interest rate

was 12,4% per annum, compounded monthly, but five years later the bank increased the annual interest rate

to 13,9%, in line with market rates. After five years the present value of the loan is R682 081,77. With the

new interest rate, his monthly payments will increase by

[1] R12 745,00

[2] R7 705,00

[3] R3 649,00

[4] R558,00

Heather deposited $100 at the end of every month into an RRSP for 5 years. The interest rate earned was 5% compounded daily. What was the accumulated value of the RRSP at the end of the 5 years? Round to the nearest cent.

The probability that the man will be alive 25 years is 2/3 and the probability that his wife will be alive 25 years 2/3.find the probability that:

both will be alive

In the average there are 2 suicides.if 1 month equal to 30 days find the probability that:at least 5 suicides