A company that manufacturers batteries for cell phones wants to estimate the mean number of hours that battery will last. How many batteries must they test to be 95% confident that their mean is within 1.5 hours of the population mean (Assume that the population standard deviation is 3.85)

Fiona and her friends are playing a game by guessing where a coin will land when it is randomly dropped inside the square shown below. fiona guesses that the coin is likely to land in the blue area. which explains whether or not fiona is correct and why?

In the following situation, determine whether you are asked to determine the number of permutations or combinations. then do the calculation how many ways are there to pick a starting five from a basketball team of twelve members? a. permutation; ps - 2520 b. combination; 1c, - 792 c. combination: 2cs - 2520 d. permutation; ps - 95040

To prove that def ~ gfh by the sss similarity theorem using the information provided in the diagram, it would be enough additional information to know that