If there were 500 students in Jamal’s class, approximately how many actual students scored higher than...
If there were 500 students in Jamal’s class, approximately how many actual students scored higher than Jamal on the quiz if Jamal had a z-score of -1?
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If there were 500 students in Jamal’s
class, approximately how many actual students scored higher than...
μ = 84 σ = 5.1 n = 42 Questions: i. You scored a 91, what...
μ = 84 σ = 5.1 n = 42 Questions: i. You scored a 91, what percentage of the students did you score higher than and what is your z-score? ii. What is the score range of 68% of the class? iii. How many students (round up) scored less than 70% on the exam? iv. How many students (round up) earned an A (90%+)? v. How many students scored a B (> 80% and < 90%)?
1. Suppose in a class of 100 students who took an exam scored out of 100,...
1. Suppose in a class of 100 students who took an exam scored out of 100, the 68thpercentile of the exam scores was 72. Thus, _________% of the students who took the exam scored less than a 72. a.32% b.68% c.72% d.28% e.None of the above 2. Suppose in a class of 80 students who took an exam scored out of 100, the 40thpercentile of the exam scores was 58. Approximately how many of the 80 students scored above a...
THINKING/COMMUNICATION 7. A post-secondary class has 600 students. The mean grade on their midterm exam is...
THINKING/COMMUNICATION 7. A post-secondary class has 600 students. The mean grade on their midterm exam is 70%, with a standard deviation of 15. a. Find the Z-score of a student who scored 80% on his exam. [2 marks] b. Find the percentage of students who failed the exam. [3 marks] c. How many students failed the exam (i.e. scored less than 49%)? [1 mark] d. Your friend claims he scored in the 99th percentile on his exam. What mark must...
For Test #1 in an undergraduate statistics course, 191 students completed the exam. The mean score...
For Test #1 in an undergraduate statistics course, 191 students completed the exam. The mean score was 75.8, and the standard deviation was 10.0. This is pretend data. Using this data and the z-score distribution provided in class, answer the following questions. Be sure to give your answer in the units requested. Report all answers to two decimal places if answer involves decimals. -I mostly need help with (e-p), but it would still help to go over (a-d). (a) How...
Computing Z scores A teacher wanted to know how well the gifted students in here class...
Computing Z scores A teacher wanted to know how well the gifted students in here class perform relative to her other classes. She administers a standardized test with a mean of 50 and standard deviation of 10. Her class of 31 students has an average score of 55, what percent of classes is their average score higher than? 2. A researcher wanted to study the effects of mentoring on intelligence scores. He wanted to know as a baseline what the...
How many octaves higher is the frequency in column B than the frequency in column A?...
How many octaves higher is the frequency in column B than the frequency in column A? A / B a. 250 Hz / 500 Hz b. 250 Hz / 4000 Hz c. 100 Hz / 400 Hz d. 1414 Hz / 5656 Hz * Please explain how you would calculate this!
For a certain law school, the entering students have an average LSAT score of about 700...
For a certain law school, the entering students have an average LSAT score of about 700 with a standard deviation of about 40. The smoothed density histogram of the LSAT scores appears to follow a normal distribution. Sketch a smoothed density histogram (a bell-shaped curve) of the distributions for the LSAT scores. (For this problem, draw this on your own paper. You will not need to submit this graph.) Because this distribution is approximately normal, the mean is equal to...
show work please Question 3 1 pts Alex scored better than 53.19% of her class, based...
show work please
Question 3 1 pts Alex scored better than 53.19% of her class, based on this which z score is most likely to be hers? O 2-0.08 O2 -0.0055 O 2-0.0492 2 -0.08 o - hp 15 16 CD 17 18 410 0 12
post anonomus ULIYILL HUL JUL OLUN Mailings Review View ences A Al 1 AaBbCcDdEe AaBb AaBbceddie...
post anonomus
ULIYILL HUL JUL OLUN Mailings Review View ences A Al 1 AaBbCcDdEe AaBb AaBbceddie AaBbCcDd Aa Bb CcDdl AaBb Cede No Spacing Heading 1 Heading 2 Heading 3 Title Normal 25. The following frequency distribution is from an Introduction to Psychology class quiz. Based on the data, please answer the questions below: What is the range of data? How many students took the quiz? How many students received a score of 5? How many students received a score...
C++ code blocks Exercise#2: Quiz marks Write a program that generates quiz marks at random, between...
C++ code blocks
Exercise#2: Quiz marks Write a program that generates quiz marks at random, between O and 10 inclusive, for a number (less than 50) of Your program should display the marks, class average, and how many students score students decided by the user. above class average. Sample input/output: nter class size: 15 uiz marks: 8 9 9 1 7 5 5 10 1 07 7 5 8 6 e class average is: 5.87 students scored above average
THINKING/COMMUNICATION 7. A post-secondary class has 600 students. The mean grade on their midterm exam is 70%, with a standard deviation of 15. a. Find the Z-score of a student who scored 80% on his exam. [2 marks] b. Find the percentage of students who failed the exam. [3 marks] c. How many students failed the exam (i.e. scored less than 49%)? [1 mark] d. Your friend claims he scored in the 99th percentile on his exam. What mark must...
show work please
Question 3 1 pts Alex scored better than 53.19% of her class, based on this which z score is most likely to be hers? O 2-0.08 O2 -0.0055 O 2-0.0492 2 -0.08 o - hp 15 16 CD 17 18 410 0 12
post anonomus
ULIYILL HUL JUL OLUN Mailings Review View ences A Al 1 AaBbCcDdEe AaBb AaBbceddie AaBbCcDd Aa Bb CcDdl AaBb Cede No Spacing Heading 1 Heading 2 Heading 3 Title Normal 25. The following frequency distribution is from an Introduction to Psychology class quiz. Based on the data, please answer the questions below: What is the range of data? How many students took the quiz? How many students received a score of 5? How many students received a score...
C++ code blocks
Exercise#2: Quiz marks Write a program that generates quiz marks at random, between O and 10 inclusive, for a number (less than 50) of Your program should display the marks, class average, and how many students score students decided by the user. above class average. Sample input/output: nter class size: 15 uiz marks: 8 9 9 1 7 5 5 10 1 07 7 5 8 6 e class average is: 5.87 students scored above average
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