A medical researcher wants to construct a 99% confidence interval for the proportion of knee replacement surgeries that result in complications. In a random sample 200 knee surgeries 8% of them resulted in complications. Find the confidence interval and round your answers to four decimals. Here is a link to the GeoGebra Probability Calculator (Links to an external site.). The Margin of Error is , the lower limit is and the upper limit is

Karen will divide her garden into equal parts. she will plant corn in 8/12 of the garden. what is the lowest number of parts she can divide her garden into?

How many ordered pairs of positive integers satisfy xy=32?

(50 ) mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.