Mathematics, 23.10.2021 19:00 juhavyen
A teacher informs his psyhcology class (of 500+ students) that a test was very difficult, but the grades would be curved. Scores on the test were normally distributed with a mean of 28 and a standard deviation of 9.2. The maximum possible score on the test was 100 points. Because of partial credit, scores were recorded with 1 decimal point accuracy. (Thus, a student could earn a 28.3, but not a 27.33.) The grades are curved according to the following scheme. Find the numerical limits for each letter grade. Letter Scheme Interval
A Top 11%
B Scores above the bottom 68% and below the top 11%
C Scores above the bottom 32% and below the top 32%
D Scores above the bottom 11% and below the top 68% F Bottom 11%
Answers: 2
Another question on Mathematics
Mathematics, 21.06.2019 20:30
If rt is greater than ba, which statement must be true ?
Answers: 1
Mathematics, 21.06.2019 22:00
Given sin∅ = 1/3 and 0 < ∅ < π/2 ; find tan2∅ a. (4√2)/9 b. 9/7 c. (4√2)/7 d.7/9
Answers: 2
Mathematics, 21.06.2019 23:00
The ratio of the perimeters of two similar triangles is 4: 3. what are the areas of these triangles if the sum of their areas is 130cm2?
Answers: 3
Mathematics, 22.06.2019 01:10
|y + 2| > 6 {y|y < -8 or y > 4} {y|y < -6 or y > 6} {y|y < -4 or y > 4}
Answers: 2
You know the right answer?
A teacher informs his psyhcology class (of 500+ students) that a test was very difficult, but the gr...
Questions
Mathematics, 04.12.2020 03:10
Mathematics, 04.12.2020 03:10
Mathematics, 04.12.2020 03:10
English, 04.12.2020 03:10
Arts, 04.12.2020 03:10
Biology, 04.12.2020 03:10
Mathematics, 04.12.2020 03:10
