Which expression is equivalent to -(5y)^-4 ? a. 625/y^4 b. -625/y^4 c. 1/625y^4 d. -1/625y^4

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.

Which of the following are independent events? a) knowing that it is going to rain tomorrow, and bringing an umbrella to schoolb) knowing that you have to get up early tomorrow, and going to bed before 9 p. mc) knowing that it is going to rain tomorrow, and going to bed before 9 p. md) knowing that you have a test in school tomorrow, and studying thw night before