3) On a police exam, the normally distributed scores had a mean of 62 with standard deviation 7.
a) What score would a cadet need to be in the top 30%?
b) What score would a cadet need to be in the middle 50% of
scores?
3) On a police exam, the normally distributed scores had a mean of 62 with standard...
The scores on a psychology exam were normally distributed with a mean of 62 and a standard deviation of 9. 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 44. (Simplify your answer.) Approximately percent of the students failed. (Round to one decimal place as needed.)
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.
The scores on two standardized tests are normally distributed. The first test had a mean of 54 and a standard deviation of 10. The second test had a mean of 78 and a standard deviation of 6. What score would you need on the second test to equal a score of 62 on the first test? Give answer to the nearest whole number.
7. Scores on a recent national Mathematics exam were normally distributed with a mean of 82 and a standard deviation of 7. A. What is the probability that a randomly selected exam score is less than 70 B. What is the probability that a randomly selected exam score is greater than 90? C. If the top 2.5% of test scores receive Merit awards, what is the lowest score necessary to receive a merit award?
scores for an exam are normally distributed with a mean of 235 and a standard deviation of 52. Identify the score which marks the boundary of the bottom 5% ?
GRE (Graduate Record Exam) scores are normally distributed with a mean of 1000 and a standard deviation of 285 [N(1000, 285)]. Above what GRE score will put you in the top 1% of all graduate applications? (Round the answer to the nearest whole number). Teleord of
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.
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.)
Exam grades: Scores on a statistics final in a large class were normally distributed with a mean of 71 and a standard deviation of 8. Use the TI-84 PLUS calculator to answer the following. Round the answers to at least two decimals. ol. (a) Find the 47th percentile of the scores. (b) Find the 65th percentile of the scores. (c) The instructor wants to give an A to the students whose scores were in the top 12% of the class....
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.