30 students in class b did the same science exam.
Mathematics, 19.11.2019 21:31 Jalenmiller492
25 students in class a did a science exam.
30 students in class b did the same science exam.
the mean mark for the 25 students in class a is 67.8
the mean mark for all the 55 students is 72.0.
work out the mean mark for the students in class
b.
Answers: 3
Another question on Mathematics
Mathematics, 21.06.2019 16:00
What are the related frequencies to the nearest hundredth of the columns of the two way table? group 1: a-102 b-34group 2: a-18 b-14edited: i don’t have all day to be waiting for an answer. i figured it out.
Answers: 2
Mathematics, 21.06.2019 23:00
How can writing phrases as algebraic expressions you solve problems?
Answers: 2
Mathematics, 22.06.2019 04:30
Given: tangent if m 1 = 30° and m = 20°, then m = 10 40 80
Answers: 1
Mathematics, 22.06.2019 04:50
Which statement is correct? the range of the graph is all real numbers greater than or equal to 0. the domain of the graph is all real numbers greater than or equal to 0. the range and domain of the graph are the same. the domain of the graph is all real numbers
Answers: 1
You know the right answer?
25 students in class a did a science exam.
30 students in class b did the same science exam.
30 students in class b did the same science exam.
Questions
History, 20.10.2020 21:01
Social Studies, 20.10.2020 21:01
Mathematics, 20.10.2020 21:01
Mathematics, 20.10.2020 21:01
Social Studies, 20.10.2020 21:01
Mathematics, 20.10.2020 21:01
Computers and Technology, 20.10.2020 21:01
Mathematics, 20.10.2020 21:01
English, 20.10.2020 21:01
