How would you find the percentage of scores that fall between a z-soore and the
ID: 3072196 • Letter: H
Question
How would you find the percentage of scores that fall between a z-soore and the mean? O Uso the Z-table and find your corresponding z-score, and then find the percentage in the proportion in body column. O Use the Z-table and find your corresponding z-score, and then find the percentage in the mean to z column. OSubtract the z-score from the mean and multiply by 100. QUESTION 3 What percentage of scores fall between a z-score of 4 and the mean? QUESTION 4 Assume that you earned an 87 on Exam 1 in this course. The class had an average of 78 (s-8.69). What is the z-score of your score? (Remember to round to the nearest hundredth) QUESTION 5 Assume that you earned an 87 on Exam 1 in this course. The class had an average of 78 (s-8.69). How many people earned a score below your score? (in percentage) QUESTION 6 We want to figure out the different percentages of people in a specific class falling within the-normal distribution. The course for the class is out of 700 points and on average when people take the course they have a mean 550 (a 35) What is the z-score for a score of 510?Explanation / Answer
Answer - 2: Option B is correct.
Answer - 3: Percentage of score between 4 and a mean = 50% = 0.50
Answer - 4: z score = (87 - 78)/8.69 = 1.04
Answer - 5: Percentage of people scored less than 87 = P(z < 1.04) = 84.98%
Answer - 6: z score for 510 = (510 - 550)/35 = -1.14
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