Ebru has a standard deck of cards. The deck has 525252 total cards and contains 444 suits: hearts, clubs, diamonds, and spades. Each suit contains cards numbered 2-102−102, minus, 10, a jack, a queen, a king, and an ace.

Ebru randomly selects a card. Let AAA be the event that the card is a 222 and BBB be the event that it is a spade.

Let the mean of the population be 38 instances of from 6" - 9" hatchings per nest, and let the standard deviation of the mean be 3. what sample mean would have a confidence level of 95% or a 2.5% margin of error?

There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y

One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%