ld man is selected at random. What is the probability that a man selected at random from the specified population will have a systolic blood pressure less than or equal to 150 mm Hg? b. A 20-year-old man selected at random had a systolic blood pressure of 160 mm Hg. How far does this value lie value above the population mean, in units of standard deviation? c. Ninety–five percent of all systolic blood pressure readings for the men comprising this population will lie between which two values? Between which two values will 90% of all systolic blood pressure readings lie? d. What proportion of readings fall between 100- and 140-mm Hg? e. What proportion of readings are less than 60
. The mean systolic blood pressure in a certain population of men between the ages
of 20 and 24 is known to be 120 mm Hg, with a standard deviation of 20 mm Hg.
a. A 22-year-old man is selected at random. What is the probability that a man
selected at random from the specified population will have a systolic blood pressure
less than or equal to 150 mm Hg?
b. A 20-year-old man selected at random had a systolic blood pressure of 160 mm
Hg. How far does this value lie value above the population mean, in units of standard
deviation?
c. Ninety–five percent of all systolic blood pressure readings for the men comprising
this population will lie between which two values? Between which two values will
90% of all systolic blood pressure readings lie?
d. What proportion of readings fall between 100- and 140-mm Hg?
e. What proportion of readings are less than 60 mm Hg or greater than 180 mm Hg
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