Instructions: Show your solutions,
Follow naming guidelines in the syllabus.
I. Using the table, find the following:
1. Mode, Median, Mode
2. Mean Deviation
3. Variance and Standard Deviation
72 44 80 40 44 60 80 43 55 62
73 49 58 48 80 53 52 47 51 80
46 61 41 74 78 56 62 55 75 51
64 40 79 65 76 66 46 60 67 52
76 49 44 47 45 68 57 56 59 68
II. Given sigma μ=45 and σ, = 6, determine and plot the location of the z scores of the following raw scores: 56, 70,82
III. The scores of SLU College Admission Test are normally distributed,with = 80 and = 6. Find the following:
1. What is the percentile rank of 84?
2. What percentageof scores fall between 64 and 90?
