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15 16 17 18 19 20 21 22 23 24 If the systolic blood pressure for a certain group of people has a mean of 129 and a standard deviation of 7, find the percentage of p have the given systolic blood pressure. Assume the random variable is normally distributed. Round the percentage answers to one decimal place. Refer to the table of values (Area Under the Standard Normal Distribution) as needed. Part 1 of 3 (a) Above 122 The percentage of people in the group who will have a systolic blood pressure above 122 is 84.1 %. Part 2 of 3 (b) Below 150 The percentage of people in the group who will have a systolic blood pressure below 150 is 99.9%. Part: 2 / 3 Part 3 of 3 (c) Between 108 and 143 The percentage of people in the group who will have a systolic blood pressure between 108 and 143 is X