The scores on an exam are normally distributed, with a mean of 85 and a standard deviation of 5. What percent of the scores are from 85 to 95?
Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
Have you seen this before?
Not the answer you are looking for? Search for more explanations.
basically it shows how much of the data is within so many standard deviations of the means. Your mean is 85, that's 0 deviations away. The standard deviation is 5, so 95 would be 2 standard deviations away. Does that make sense?
uh well im not really sure what a standard deviation is to be honest
it's a measure of how spread out the data is. If it's small, then a lot of the scores would be really close to the mean. If it's big, then the data is more spread out
so the data in this case would be spread out by 5
sort of. the graph up above only works for normal distributions, meaning most of the data is falls within 5 points of the mean. Specifically 68%
If we were to label the graph with numbers from your problem 85 would go in the middle because that's the mean
since the standard deviation is 5, you can add labels to the right increasing by 5 and labels to the left decreasing by 5
so to the the percentage from 85 to 95 you just add 34 and 13?