Recent content by CosmoK123456

  1. C

    MHB Display information on a normal curve

    A hospital would like to determine the average stay for its patients having abdominal surgery. A sample of 15 patients revealed a sample mean of 6.4 days and a sample standard deviation of 1.4 days.How do you display this in a normal curve?? any help would be appreciated. Thanks
  2. C

    MHB Solving Probability w/ Cards: Answers & Explanations

    I just want to make sure I have these answers right... if they are not can you please explain how to get the right answer. The wording of the question is what gets me confused with probability. A box contains 50 index cards. One letter is written on each card. There are 5 cards with the letter...
  3. C

    MHB Did I Multiply Correctly for Coffee Preferences?

    Hi, I was wondering if someone could check to see if this problem is correct. For part "e" I originally was dividing put changed to multiplying is that correct? Thanks in advance for the help. A researcher was interested in the type of coffee that coffee drinkers prefer. A random sample of...
  4. C

    MHB Practice test help - probability from data

    Having some trouble with this. I think the answer to question 1 is 26% and question 2 is 2%. I'm not sure when to divide by 163 or 100?? practice test help: About 26% of orthopedic surgeries involves knee problems. The following table summarizes data collected from a sample of adults who have...