The systolic blood pressure (BP) of adults in the USA is nearly normally distributed with a mean of121 and standard deviation of 15.Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 orhigher.(a) Around what percentage of adults in the USA have stage 2 high blood pressure? Give youranswer rounded to two decimal places.(b) Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in theUS qualify for stage 1? Give your answer rounded to two decimal places.(c) Your doctor tells you that you are in the 30th percentile (e.g. bottom 30%) for blood pressureamong US adults. What is your systolic BP? Give your answer rounded to two decimal places.mmHgFEBW22MacBook Air80888F9F7FSescF3$%&@234678123QWERFGHKАSDckCBatroloptioncommandcの* 00>N

Answered: The systolic blood pressure (BP) of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

The systolic blood pressure (BP) of adults in the USA is nearly normally distributed with a mean of
121 and standard deviation of 15.
Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or
higher.
(a) Around what percentage of adults in the USA have stage 2 high blood pressure? Give your
answer rounded to two decimal places.
(b) Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the
US qualify for stage 1? Give your answer rounded to two decimal places.
(c) Your doctor tells you that you are in the 30th percentile (e.g. bottom 30%) for blood pressure
among US adults. What is your systolic BP? Give your answer rounded to two decimal places.
mmHg
FEB
W
22
MacBook Air
80
888
F9
F7
FS
esc
F3
$
%
&
@
23
4
6
7
8
1
2
3
Q
W
E
R
F
G
H
K
А
S
D
ck
C
B
atrol
option
command
cの
* 00
>
N

Expert Solution

Step 1

From the given information,

Consider, X be the random variable that shows the systolic blood pressure which is normally distributed with the mean of 121 and standard deviation of 15.

That is, $X ~ N (μ = 121, σ = 15)$

It is given that if systolic blood pressure 160 or higher than 160 it is considered to be high stage 2 blood pressure

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