# statistics

posted by .

what the error is:
a)
A 20%
B 45%
C 30%
D 10%
F 5%

(b) The following table summarizes the grade breakdown on an exam in a small statistics class with 10 students.
A 30%
B 35%
C 15%
D 20%
F 0%

## Similar Questions

1. ### Math - average grade

Does anyone know how to calculate average point grade?
2. ### statistics

In one history class, 34 students took an exam. The mean of the exam was 52 with a standard deviation of 13. If the instructor is going to assume data are normally distributed and assign grades on a curve, then she will assign an A …
3. ### basic statistics for the behavioral sciences

there are 80 students enrolled in statistics. (a)you and 11 other earned the same score. what percent of the class received your score?
4. ### statistics

2. The grades on a statistics midterm exam were normally distributed with a mean of 72 and a standard deviation of 8. a. What is the proportion of students received a B grade. b. What is the proportion of students that failed the exam?
5. ### statistics

12. A statistics student received a grade of 85 on a statistics midterm. If the corresponding z score equaled +1.50, and the standard deviation equaled 7, what was the average grade on this exam?
6. ### stats

Relatively speaking, which statistics exam did you do better on?
7. ### statistics

1. I took a sample of the grade point averages for students in my class. For 25 students, the standard deviation of grade points was 0.65 and the mean was 2.89. The standard error for the sample was:
8. ### Statistics

On this semesters final exam, john scored 72 on his calculus exam, (class distribution (u=65, \σ=3.57)\) ) and 53 on his statistics exam (class distribution :u=49, σ=2.04. Which exam should he get the better grade. z1=72-65/3.57=1.960 …
9. ### statistics

On this semesters final exam, john scored 72 on his calculus exam, (class distribution (u=65, \?
10. ### statistics

Correction On this semesters final exam, john scored 72 on his calculus exam, (class distribution (u=65, \?

More Similar Questions