genyjoannerubiera
18.07.2019 •
Mathematics
Jeremy's score was 1.75 standard deviations above the mean. which kf thr following is closest to his percentile rank
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Ответ:
Explanation:
It is generally presumed that the scores are normally distributed.
1) You are given how many standard deviations from the mean Jeremy's score is. This is exactly the definition of the z-score. Therefore z = 1.75
2) Look at a left-tail z-table in order to find the area of the normal curve on the left of your z-score (see picture attached). A = 0.9599
3) Multiply the area by 100 in order to find the percentile:
0.9599 × 100 = 95.99
Therefore, 95.99% of the students scored less than Jeremy.
Hence, the answer is 96%.
Ответ:
it equals 2.04
Step-by-step explanation: