STATISTICS

posted by .

if the mean is 85 and the SD is 8 what percentage of students will receive a grade less than 58 and greater thAN 110

  • STATISTICS -

    "a grade less than 58 and greater thAN 110 "
    No student will receive this grade!

    Seriously, you probably mean
    "a grade less than 58 or greater thAN 110 "

    What can be done is to calculate the percentage of students who receive X, where 58≤X≤110.

    Given μ=85, σ=8, then
    Z(X)=(X-μ)/σ
    From Z(58) and Z(110), find the percentage of students in this range using the normal distribution table.

    Finally, subtract this percentage from 100 to get the students outside of this range.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Statistics

    Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: Suggest you make a drawing and label first… a. Percentage of scores …
  2. Statistics... I need help

    . Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: (Hint: Make a drawing and label first) a. Percentage of scores …
  3. statistics

    Assume that a set of test scores is normally distrbuted with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: Suggest you make a drawing and label first.... a. Percentage of scores …
  4. statistics

    Using the 68-95-99.7rule. Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: a. percentage of scores less than 100 b. …
  5. statistics

    Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: Suggest you make a drawing and label first… a.Percentage of scores …
  6. statistics

    Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: Suggest you make a drawing and label first… a. Percentage of scores …
  7. statistics

    Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: a. Percentage of scores less than 100 b.Relative frequency of scores …
  8. statistics

    Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: Suggest you make a drawing and label first… a. Percentage of scores …
  9. statistics

    a test has a mean score 73 with standard deviation of 12.students with scores greater than 85 receive an A. What is the percent of the students would we expect to get an A?
  10. Math-statistics

    Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantiles: a.percentage of scores less than 100 b. relative frequency of scores …

More Similar Questions