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

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 20:50

You need to solve a system of equations. you decide to use the elimination method. which of these is not allowed? 3x - 2y = 7 3x + 4y = 17 equation 1 equation 2

Answers: 1

Answer

Mathematics, 21.06.2019 21:00

Can some one explain how to slove specifically, what is the value of x? 0.9(x+1.4)-2.3+0.1x=1.6 enter the answer as a decimal in the box. x= ?

Answers: 2

Answer

Mathematics, 21.06.2019 23:30

Is the underlined participial phrase correctly placed or misplaced? i smelled each and every flower strolling through the garden. a. correctly placed participial phrase b. misplaced participial phrase

Answers: 2

Answer

Mathematics, 22.06.2019 01:00

Michael split a rope that was 28 inches long into 5 equal parts. brenden split a rope that was 30 inches long into 6 equal parts. which boy's rope was cut into longer pieces?

Answers: 1

Answer

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, 30.03.2020 23:06

11 less than three times a number is the same as 75 less than the product of-1 and the number...