At a school s open house T shirts and sweatshirts were sold

Last updated: 5/24/2023

At a school s open house T shirts and sweatshirts were sold Each item was purchased by either a student or a parent The two way frequency table summarizes a random sample of 50 items sold that night Student Parent T shirt 12 18 Sweatshirt 11 9 Let student be the event that an item randomly chosen from among those sold was purchased by a student Let T shirt be the event that an item randomly chosen from among those sold was a T shirt Find the following probabilities Write your answers as decimals If necessary consult a list of formulas a P T shirt 0 24 b P student and T shirt 0 82 NUME c P student T shirt