2 1 point The graph of a normal curve is given. Use the graph to identify the value of and O. The value of is type your answer... The value of is type your answer... 40 55 55 x 70 85 100 115 130 145 160 5 3 1 point What happens to the graph of the normal curve as the mean increases? Nothing happens to the graph of the normal curve. The graph of the normal curve flattens out and becomes wider. The graph of the normal curve slides left. The graph of the normal curve slides right. 4 1 point What happens to the graph of the normal curve as the standard deviation decreases? The graph of the normal curve flattens out and becomes wider. The graph of the normal curve compresses and becomes steeper. The graph of the normal curve slides left. The graph of the normal curve slides right. 1 point Determine the area under the standard normal curve that lies to the left of Z Round to four decimal places as needed. Type your answer... == -1.5 -DO -DO -DO