la. A group of data with normal distribution has a mean of 45. If one element of the data is 60, will the z-score be positive or negative? Give explanation for your answer. 1b. Suppose the test scores among a set of first year nursing students are normally distributed with a mean of 500 and a standard deviation of 100. If a student nurse scores a 700, what would be her z- score? 2. The following table gives data on the type of car, grouped by petrol consumption, owned by 100 nurses at Cornwall Regional Hospital. Low Medium High Total Male 12 33 7 Female 23 21 4 100 L is the event "the person owns a low rated car" F is the event "a female is chosen". Given that one nurse is randomly selected, calculate the following. Find (1) P (L) (1i) P (FL) (iii) P (F L)