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1. In a normal distribution, find the proportion of area: a. Less than a z-score of -2.13 b. Greater than a z-score of +1.54 .9380 C. Between the z-scores of -1.08 and +2.36 . 1401 . 9909 . 9909 - , 1401 8508 2. Suppose in a normal distribution u = 75 and o = 10. Find the proportion of area: a. To the left of a data value of 70. .3085 b. To the right of a data value of 58. 1 0446 c. Between the data values of 60 and 78. 3153 B ) TO the right of data valve 58 *= 70 75 Area to " 2:-1.7 night 10 Area = -0446 Damn bart 2 = X - M 58- 75 18=10 2=70- 75 10 :-.5 P (x > 58) 58 - 75_1 - 58 - 70 - - 1.7 10 2 table area for. - 0.50 10 - 3085 ( ) P(GOS*5 78 ) 75 *= 60 0 10 60-75 x= 78 10 78 - 75 2: - 1.5 10 Area: 1 10668 2 :. 3 Subtract areas Area = . 6179 . 3821 -0668 1- 6179 (382 1) .3153