Let X be normally distributed with mean =19 and standard deviation =10. [You may find it useful to reference the z table.] a. Find P(X1). (Round " z value to 2 decimal places and final answer to 4 decimal places.) b. Find P(X>4). (Round " z value to 2 decimal places and final answer to 4 decimal places.) c. Find P(8X17). (Round " z " value to 2 decimal places and final answer to 4 decimal places.) P(8X17) d. Find P(9X23). (Round " z " value to 2 decimal places and final answer to 4 decimal places.).