Classs mean
The class size is 30 students. Math was not worse than mark 2. Find the number of pupils who were marked one if the class had a 1.4 average mark.
Correct answer:
Tips for related online calculators
Looking for help with calculating arithmetic mean?
Looking for a statistical calculator?
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?
Looking for a statistical calculator?
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?
You need to know the following knowledge to solve this word math problem:
We encourage you to watch this tutorial video on this math problem: video1
Related math problems and questions:
- Marks at school
There are 30 students in the class. Five students in the class had a mark of three or triple at the end of the math certificate, and the other students had a mark of one or two. The average mark in all students' mathematics in the class at the end of the - There
There are 24 students in the class. On Friday, the math class is divided into two groups of 12 students. The table shows the results of pupil assessment in 2 groups. Three students in the 1st group had a worse grade than those in the 2nd group. The other - Certificate
There are 31 students in a class. The mathematics score wasn't worse than 2. The average score in mathematics was 2. How many students have a score of one, and how many have a score of 2? - Students
If the fifth-grade class left 20% of students and in the seventh grade were added two pupils, in the eighth one pupil, the number has not changed in the ninth grade, but it is now tenth students less than it was in the fifth grade. How many pupils are in - Students 5905
There were 21 pupils in the class, and the teacher gave the mark one to 3 pupils, mark two to 5 pupils, mark three to 8 pupils, mark four to 4 pupils, and five to 1 pupils. How many percent of students received a grade better than three? - There 11
There are 50 pupils in the class. Out of this number, 1/10 speak French only, and 4/5 of the ten speak French and English. If the rest speak English only, find the number of students who speak only English. - 9.A
Class 9A attends more than 20 students but fewer than 40 students. A third of the pupils wrote a math test to mark 1, the sixth to mark 2, and the ninth to mark 3. No one gets mark 4. How many students of class 9A wrote a test to mark 5? - Two-fifths 7764
No one got a grade worse than three. A third of the class got one, two-fifths two, and eight students had three. How many students had one or two? - Two sigma
Khail took his math test and scored 88. If the class average was 78 with a standard deviation of 5, what percent of students earned a higher grade than Khail's grade? - Remaining 4448
3/4 of the class went skiing. Of those who stayed home, 1/3 fell ill, and the remaining six were at a math camp. How many students does the class have? - Remaining 4165
3/4 of the class went skiing. Of those who stayed home, 1/3 fell ill, and the remaining six were at a math camp. How many students does the class have? - Dentist
Class 5. I participated in a preventive dental examination. A quarter of the pupils found two dental caries, and an eighth found one caries. Half the class had all their teeth healthy. How many students attend class 5? If four students were missing on the - Students 26111 There were 24 pupils from the whole class on the school trip. Out of 4/7 of all girls, ¼ did not go. Since all the boys went, there were an equal number of boys and girls on the trip. How many students are there in the class? How many boys are there?
- Percentage 5371
There are 32 pupils in the class. A quarter of them attends a computer course. What percentage of the total number of students in the class do not attend a computer course? - Class 8.A
Three-quarters of class 8A went skiing. Of those who remained at home, one-third were ill, and the remaining six were on math Olympic. How many students have class 8A? - Math class
There are a total of 30 students in a math class. The number of boys is 2 more than 3 times the number of girls. How many boys are in this math class? - Exam average
The average of marks that have on the certificates students of 8A class in mathematics is exactly 2.45. If we did not add 1 and 3 of students Michael and Alena, who arrived a month ago, it would average exactly 2.5. Determine how many students have class
