Statistics
 👍
 👎
 👁

 👍
 👎
Respond to this Question
Similar Questions

Stats
A normal distribution has a mean of 120 and a standard deviation of 20. What score separates the top 40% of the scores from the rest?

Algebra
Scores on a test have a mean of 66 and Q3 is 80. The scores have a distribution that is approximately normal. Find the standard deviation. Round your answer to the nearest tenth. 10.5 18.7 20.9 9.4

Statistics
Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 689599.7 rule to find the following quantities: Suggest you make a drawing and label firstâ€¦ a. Percentage of

Mathstatistics
Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 689599.7 rule to find the following quantiles: a.percentage of scores less than 100 b. relative frequency of

statistics
The National Assessment of Educational Progress ( NAEP) includes a mathematics test for eigthgrade students. Scores on the test range from 0 to 500. Suppose that you give the NAEP test to an SRS of 1100 8thgraders from a large

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 689599.7 rule to find the following quantities: (Hint: Make a drawing and label first) a. Percentage of scores

Stats
A sociology professor assigns letter grades on a test according to the following scheme. A: Top 14% of scores B: scores below the top 14% and above the bottom 55% C: scores below the top 45% and above the bottom 17% D: scores

statistics
Scores from a statistics exam are reported as deviation scores. Which of the following deviation scores indicates a higher position in the class distribution?

statistics
Scores on a test have a mean of 66 and Q3 of 81. The scores have a distribution that is approximately normal. Find the standard deviation. Round your answer to the nearest tenth.

statistics
In an extensive study involving thousands of British children, Arden and Plomin (2006) found significantly higher variance in the intelligence scores for males than for females. Following are hypothetical data, similar to the

Statistics
In a normal distribution of scores, four participants obtained the following deviation scores: +1, 2, +5, and 10. (a) Which score reflects the highest raw score? (b) Which score reflects the lowest raw score? (c) Rankorder the

statistics
Suppose IQ scores have a bellshaped distribution with a mean of 100 and a standard deviation of 15. What percentage of the scores are above 130?
You can view more similar questions or ask a new question.