GCSE Secondary Maths Age 13-17 - Probability & Statistics: Mean - Explained

Interactive Video
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Mathematics, Social Studies
•
10th - 12th Grade
•
Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many students from class A participated in the science exam?
30
25
20
35
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total number of marks obtained by all students in both classes?
3,960
1,695
2,265
4,000
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the total marks for class B?
Divide the overall total by 2
Add class A's total to the overall total
Subtract class A's total from the overall total
Multiply the mean of class B by 30
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the mean mark for the students in class B?
75.5
72.0
70.0
67.8
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the key concept needed to solve this type of problem?
Skill in finding range
Ability to calculate mode
Knowledge of mean calculation
Understanding of median
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