# statistics

posted by .

Based on data collected by the National Center for Health Statistics and made available to the public in the Sample Adult database, an estimate of the percentage of adults who have at some point in their life been told they have hypertension is 23.53 percent. If we select a simple random sample of 20 U.S. adults and assume that the probability that each has been told that he or she has hypertension is .24, find the probability that the number of people in the sample who have been told that they have hypertension will be exactly 3?

• statistics -

You can use a binomial probability table or do this by hand.

If you are doing this by hand, use the binomial probability function, which states:

P(x) = (nCx)(p^x)[q^(n-x)]
x = 3
n = 20
p = .24
q = 1 - p

I'll let you take it from here.

• statistics -

6374

• statistics -

6374

• statistics -

0.3183

## Similar Questions

1. ### Statistics

The percentage of adults who have been told at some point that they have hyptertension is 23.53%. If 10 adults are randomly selected, what is the probability that at least 8 have been told that they have hypertension?
2. ### Statistics

Data in 1980 showed that about 48% of the adult population had never smoked cigarettes. In 2004, a national health survey interviewed a random sample of 5000 adults and found that 54% had never been smokers. Create a 95% confidence …
3. ### statistics

A Gallup Poll asked, "In general, how often do you experience stress in your daily life - never, rarely, sometimes, or frequently?
4. ### STATISTICS

the percentage of adults who have at some point in their life been told that they have hypertension is 23.53%. If 8 adults are randomly selected, find the probability that between 2 and 4 of then inclusive have been told that they …
5. ### statistics

2. The National polling organization conducted a phone survey of 850 American adults on what they considered to be the most serious problem facing nationâ€™s public schools; 30% said violence. This sample percent is an estimate of …
6. ### Biostatitics

Based on data collected by the National Center for Health Statistics and made available to the public in the Sample Adult database, an estimate of the percentage of adults who indicated to have at some point of their life been tested …
7. ### Statistics

In a prior sample of U.S. adults, the Center for Disease Control (CDC), found that 10% of the people in this sample had pinworm but the margin of error for the population estimate was too large. They want an estimate that is in error …
8. ### Applied Stats

Based on the data collected by the National Centre for health Statistics and made available to the public in the Sample Adult database, it was found that the percentage of adults who have at some point in their life been told that …
9. ### math

Based on the data collected by the National Centre for health Statistics and made available to the public in the Sample Adult database, it was found that the percentage of adults who have at some point in their life been told that …
10. ### Statistics

Based on data collected by the National Center for Health Statistics and made available to the public in the Sample Adult database (A-5), an estimate of the percentage of adults who have at some point in their life been told they have …

More Similar Questions