Asked by Taylor
The number of pounds gained during pregnancy are normal with mean=30.23 and st. deviation=13.84
Determine the percent of women that gain between 20 and 30 pounds.
Determine the percent of women that gain between 20 and 30 pounds.
Answers
Answered by
Dr. Jane
You have to subtract the mean from each score and divide by the standard deviation.
This will give you two z-scores
One for (20 -30.23)/13.84
the other one (30 - 30.23)/13.84
Use a standard z (normal table) to find the area under the curve between these two numbers. That will give you the percent of women in that range.
This will give you two z-scores
One for (20 -30.23)/13.84
the other one (30 - 30.23)/13.84
Use a standard z (normal table) to find the area under the curve between these two numbers. That will give you the percent of women in that range.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.