A researcher is interested in determining whether a new drug lowers blood pressure more than a leading drug. The average systoli
c blood pressure was analyzed for 10 people using the drugs. The mean systolic blood pressure of the people using the new drug is 121.7 millimeters of mercury whereas the mean systolic blood pressure for those using the leading drug was 123.1 millimeters of mercury. After rerandomizing the data 100 times, the following dot plot was generated.
Hint: where SD is the standard deviation, XH is the high value, and XL is the low value
Hint: where SD is the standard deviation and N is the sample size
What is the margin of error, rounded to the nearest hundredth, for this experimental study?
Hint: where SD is the standard deviation, XH is the high value, and XL is the low value
Hint: where SD is the standard deviation and N is the sample size
What is the margin of error, rounded to the nearest hundredth, for this experimental study?
2 answers:
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Answer:
or
(simplified)
Step-by-step explanation:
Based on the information provided within the question it can be said that in order to calculate the probability of both grapes being green we need to find the probability of each grape being green separately and then multiply those probabilities together
In the first choice, there are a total of 22 grapes (9+13), 9 of which are green. Therefore the probability of the first chosen grape being green is
In the second choice,since we removed one grape there is now a total of 21 grapes (22-1), 8 of which are green. Therefore the probability of the second chosen grape being green is
Now we multiply both probabilities together to calculate the probability that both grapes are green in a sequence.