DESCRIPTIVE STATISTICS

Question 7 A study is conducted at a retirement home to determine the attitudes of nurses towards various administrative procedures. A sample of 15 nurses is selected from a total of 23 nurses employed by the retirement home. 7.2}Eight of the 23 nurses are male. If 15 nurses are randomly selected from those employed by the retirement home, what is the probability that the sample selected will include exactly 6 male and 9 female nurses (rounded off to three decimals)? [6] Question 8 8.1} How many different words (including nonsense words} can you make by rearranging the letters of the word EFFERVESCENCE? [3] 8.2} How many different 4 letter words (including nonsense words} can be made from the letters of EFFERVESCENCE, if letters cannot be repeated? [2] 8.3} How many different 4 letter words (including nonsense words} can be made from the letters of EFFERVESCENCE, if letters can be repeated? [2]