For each value of z*, find the cumulative probability P(Z ≤ z*): a. z* = 0. b. z* = -0.35. c. z* = 0.35.

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A Find: P (Z ≤ 0)
Since this is continuous distribution, P (Z ≤ 0) = P (Z < 0)
Area to the left of 0.00
Z
0.5000
0.00
0
P (Z < 0): in a z-table having area to the left of z, locate 0 in the left most
column. Move across the row to the right under column 0.00 and get value
0.5000
P (Z ≤ 0) = 0.5000
Using excel function normdist(0, 0, 1, TRUE) or TI’s function
normalcdf(-1E99,0 ) answer is: 0.500000000000000
B Find: P (Z ≤ −0.35)
Since...