As reported by the US National Center for Health Statistics, the mean serum high-density-lipoprotein (HDL) cholesterol of genetic females 20-29 years old is u = 53 The standard deviation is o = 12. Also, serum HDL cholesterol is normally distributed. If one 20-29 year old genetic female is randomly selected, what is the probability that their HDL cholesterol is less than 60? If one 20-29 year old genetic female is randomly selected, what is the probability that their HDL cholesterol is between 40 and 60? The 80th percentile of HDL cholesterol of females 20-29 years old is The following picture might be helpful: A= 0.80 x = ? If four hundred females, aged 20-29 year old, are randomly selected, what is the probability that the sample mean HDL cholesterol level is between 52 and 54?
As reported by the US National Center for Health Statistics, the mean serum high-density-lipoprotein (HDL) cholesterol of genetic females 20-29 years old is u = 53 The standard deviation is o = 12. Also, serum HDL cholesterol is normally distributed. If one 20-29 year old genetic female is randomly selected, what is the probability that their HDL cholesterol is less than 60? If one 20-29 year old genetic female is randomly selected, what is the probability that their HDL cholesterol is between 40 and 60? The 80th percentile of HDL cholesterol of females 20-29 years old is The following picture might be helpful: A= 0.80 x = ? If four hundred females, aged 20-29 year old, are randomly selected, what is the probability that the sample mean HDL cholesterol level is between 52 and 54?
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Transcribed Image Text:As reported by the US National Center for Health Statistics, the mean serum high-density-lipoprotein (HDL)
cholesterol of genetic females 20-29 years old is u = 53 The standard deviation is o = 12.
Also, serum HDL cholesterol is normally distributed.
If one 20-29 year old genetic female is randomly selected, what is the probability that their HDL cholesterol is
less than 60?
If one 20-29 year old genetic female is randomly selected, what is the probability that their HDL cholesterol is
between 40 and 60?
The 80th percentile of HDL cholesterol of females 20-29 years old is
The following picture might be helpful:
A= 0.80
x = ?
If four hundred females, aged 20-29 year old, are randomly selected, what is the probability that the sample
mean HDL cholesterol level is between 52 and 54?
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