The systolic blood pressure of 18- year- old women is normally distributed with a mean of 120 mmHg and a standard deviation of 12 mmHg. What percentage of 18- year- old women have a systolic blood pressure that lies within 3 standard deviations to either side of the mean?

99.7% of of 18- year- old women have a systolic blood pressure that lies within 3 standard deviations to either side of the mean

Step-by-step explanation:

We would apply the standard deviation rule. The Standard Deviation Rule states that for a normal distribution, nearly all of the data will fall within three standard deviations of the mean . The empirical rule is further illustrated below

68% of data falls within the first standard deviation from the mean.

95% fall within two standard deviations.

99.7% fall within three standard deviations.

From the information given, the mean is 120 mmHg and the standard deviation is 12 mmHg.

Therefore,

99.7% of of 18- year- old women have a systolic blood pressure that lies within 3 standard deviations to either side of the mean.

99.74%

Step-by-step explanation:

Using empirical rule (68 - 95 - 99.7)

Approximately, 99.7% data falls in 3 standard deviation of the mean.

im not sure

step-by-step explanation:

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system