Question

**Check your blood pressure**: In a recent study,
the Centers for Disease Control and Prevention reported that
diastolic blood pressures of adult women in the United States are
approximately normally distributed with mean 80.9 and standard
deviation 10.3.

(a) What proportion of women have blood pressures lower than 70?

(b) What proportion of women have blood pressures between 71and 91?

(c) A diastolic blood pressure greater than 90 is classified as hypertension (high blood pressure). What proportion of women have hypertension?

(d) Is it unusual for a woman to have a blood pressure lower than 63?

Round the answers to four decimal places.

Answer #1

Check our blood pressure: In a recent study, the Centers for
Disease Control and prevention reported that diastolic blood
pressures of adult women in the United States are approximately
normally distributed with mean 80.8 and a standard deviation of
10.2.
(a) What proportion of women have blood pressures lower than
69?
(b) What proportion of women have blood pressures between 70 and
90?
(c) A diastolic blood pressure greater than 90 is classified as
hypertension (high blood pressure). What proportion...

In a recent study, the Centers for Disease Control reported that
diastolic blood pressures of adult women in the U.S. are
approximately normally distributed with mean 80.9 and standard
deviation 9.9.
A) What proportion of women have blood pressures
lower than 70?
B) What is the 80th percentile of blood
pressures?
C) A woman has a blood pressure of 84 mm. What
percentile is her blood pressure on? (Round up the final answer to
the nearest whole number.)
D) A...

In a recent study, the Centers for Disease Control reported that
diastolic blood pressures of adult women in the U.S. are
approximately normally distributed with mean 80.6 and standard
deviation 9.9.
1. What proportion of women have blood pressures lower than
70?
2. What is the 80th percentile of blood pressures?
3. A woman has a blood pressure of 84 mm. What percentile is her
blood pressure on? (Round up the final answer to the nearest whole
number.)
4. A...

In a recent study, the Centers for Disease Control and
Prevention reported that diastolic blood pressures of adult women
in the United States are approximately normally distributed with
mean 80.1 and standard deviation of 9.9.
(a) Find the 70th percentile of the blood pressures.
(b) Find the 33rd percentile of the blood pressures.
(c) Find the third quartile of the blood pressures.
Use the TI-84 Plus calculator and round the answers to at least
two decimal places.

The United States Centers for Disease Control and Prevention
(CDC) found that 17.9% of women ages 12 – 59 test seropositive for
HPV‑16. Suppose that Tara, an infectious disease specialist, assays
blood serum from a random sample of ?=1000 women in the United
States aged 12 – 59. Apply the central limit theorem for the
distribution of a sample proportion to find the probability that
the proportion, ?̂ , of women in Tara's sample who test positive
for HPV‑16 is...

Suppose that diastolic blood pressures of adult women in the
United States are approximately normally distributed with mean 80.5
and standard deviation 9.9. What proportion of women have blood
pressure greater than 67.6 ? Write only a number as your answer.
Round to 4 decimal places (for example 0.0048). Do not write as a
percentage.

Suppose that diastolic blood pressures of adult women
in the United States are approximately normally distributed with
mean 80.5 and standard deviation 9.9. What proportion of women have
blood pressure greater than 72.9 ?
Write only a number as your answer. Round to 4 decimal
places (for example 0.0048). Do not write as a percentage.

According to a study by the Centers for Disease Control and
Prevention, about 33% of U.S. births are Caesarean deliveries.
Suppose seven expectant mothers are randomly selected. What is the
probability that at most two of the expectant mothers will have a
Caesarean delivery? 0.5783 0.2696 0.4217

The Centers for Disease Control and Prevention receives
information about the causes for HIV/AIDS infection in the United
States. Here are the causes of infection and their respective
probability among American women ages 20 to 24 years old.
Cause
Probability
Injection drug use
?
Heterosexual sex
0.664
Perinatal infection
0.125
Other causes
0.095
Assuming this is a legitimate probability model, What is the
probability that an American woman age 20 to 24 was infected via
injection drug use?
Answer in...

The Centers for Disease Control and Prevention receives
information about the causes for HIV/AIDS infection in the United
States. Here are the causes of infection and their respective
probability among American women ages 20 to 24 years old.
Cause
Probability
Injection drug use
?
Heterosexual sex
0.664
Perinatal infection
0.125
Other causes
0.095
Assuming this is a legitimate probability model, What is the
probability that an American woman age 20 to 24 was infected via
injection drug use?
Answer in...

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