Question 1 < > Let Z be a standard normal random variable and calculate the following probabilities, drawing pictures wherever appropriate. (Round your answers to four decimal places.) a) P(0 Z 2.5) = Sketch the curve corresponding to this probability Shade: Left of a value Click and drag the arrows to adjust the values. -1 0 1 3 -1.5 - b). P( 2.9Z < 0) = Sketch the curve corresponding to this probability Shade: Left of a value Click and drag the arrows to adjust the values. -4 -3 -2 -1 0 1 2 3 -1.5 c) P(Z1.2): = Sketch the curve corresponding to this probability Shade: Left of a value Click and drag the arrows to adjust the values. -3 -2 -1 0 1 2 3 -1.5 d). P(Z 1.7) = Sketch the curve corresponding to this probability Shade: Left of a value Click and drag the arrows to adjust the values. -4 -2 -1 0 1 2 3 4 -1.5