# statistics

there are 80 students in a math class.20% of the students in the class scored above 50 marks in the test. what is the average of those students who scored below 50 marks

1. 👍 0
2. 👎 0
3. 👁 138
1. What are "50 marks"?

The average (mean) of the remaining 80% of students cannot be determined without more information.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### math

The stem-and-leaf plot shows the test scores of a science class. Use the plot to answer the question. 1.how many students scored 78? (1 point) 1 student 2 students 3 students 4 students

2. ### Math

After a Math test, each of the twenty-five students in the class got a peek at the teacher's grade sheet. Each student noticed five A's. No student saw all the grades and no student saw his or her own grade. What is the minimum

3. ### math

In a local school 34 students are enrolled in a math class, 85 are enrolled in an english class, 58 are enrolled in an art class, and 54 are enrolled in a history class. Construct a pie chart with this data. What is the central

4. ### Math

The stem-and-leaf plot shows the test scores of a science class. Use the plot to answer the question. How many students scored 78? A. 1 student B. 2 students C. 3 students D. 4 students

1. ### 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? (b)forty percent of the class received a grade of C. how many students received a C? (c) only

2. ### statistics

An instructor in a large lecture class found at the end of the semester that total points scored by students in his class was approximately Normal with mean 530 and standard deviation 80. If 10% of the class are to receive A's (he

3. ### maths

there are 104 students in class 10th and 96 students in class 9th in a school .in a house examination the students ate to be evenly seated in parallel rows such that no two adjacent rows are of the same class. (a) find the maximum

4. ### math

One day during flu season, 1/3 of the students in a class were out sick, and only 24 students were left. How many students are in the class?

1. ### statistics

In a recent survey in a Statistics class, it was determined that only 60% of the students attend class on Thursday. From past data it was noted that 98% of those who went to class on Thursday pass the course, while only 20% of