Blood pressure reading is determined by measuring systolic and diastolic blood pressures. Systolic blood pressure, the top number, measures the force the heart exerts on the walls of the arteries each time it beats. Diastolic blood pressure, the bottom number, measures the force the heart exerts on the walls of the arteries in between beats. Suppose the diastolic blood pressure readings have a mean of 74 millimeters of mercury (mmHg) and a standard deviation of 5 mmHg. If 46 people are randomly selected, find the probability their mean diastolic pressure reading is between 70 and 73 mmHg. Express the answer as a decimal value rounded to the nearest thousandth