scores for an exam are normally distributed with a mean of 235 and a standard deviation...
Scores for an exam are normally distributed with a mean of 235 and a standard deviation of 52. What is the percentile value of a score of 270? Round your score to TWO decimal places. For example, if you compute a value of .547, you would enter .55. ALSO: Please enter ONLY the value, no equals sign, no words, etc.
Normally distributed scores on Social Psych Final Exam had a mean of 235 and a standard deviation of 52. What is the minimum score needed to be in the highest 10%? Round to the nearest whole number.
11. Scores on a national exam are normally distributed with mean 382 and standard deviation 26. Find the score that is the 50th percentile. b. Find the score that is the 90th percentile. a.
Scores on an exam are normally distributed with a mean of 65 and a standard deviation of 9. Find the percent of the scores that satisfies the following: (a) Less than 54 (b) At least 80 (c) Between 70 and 86
The scores on a psychology exam were normally distributed with mean of 55 and a standard deviation of 5. A failing grade on the exam was anything 2 or more standard deviations below the mean. What was the cutoff for a failing score? Approximately what percentage of the students failed? The cutoff for a failing score was 45. (Simplify your answer.) Approximately percent of the students failed. (Round to one decimal place as needed.)
The scores on a psychology exam were normally distributed with a mean of 55 and a standard deviation of 9. What is the standard score for an exam score of 41? The standard score is . (Round to the nearest hundredth as needed.)
Scores on a test are normally distributed with a mean of 65 and a standard deviation of 10. Find the score to the nearest whole number which separates the bottom 81% from the top 19%. A. 88 B. 68 C. 56 D 74
Verbal GRE exam scores are normally distributed with a mean of 497 and a standard deviation of 115. Use Table 8.1 to find the range covered by the middle 90% of verbal GRE scores.
Scores on exam-1 for a statistics course are normally distributed with mean 65 and standard deviation 1.75. What scores separates highest 15% of the observations of the distribution ?
The scores of students on an exam are normally distributed with a mean of 225 and a standard deviation of 38. (a) What is the lower quartile score for this exam? (Recall that the first quartile is the value in a data set with 25% of the observations being lower.)