(a) The standard normal curve is graphed below. Shade the region under the standard normal curve to the left of z= 0.00. 0.4- T 0.3+ X 0.2- ' 0.1- -2 w - (b) Use this table or the ALEKS calculator to find the area under the standard normal curve to the left of z= 0.00. Give your answer to four decimal places (for example, 0.1234). X