The following table gives the marks scored by 50 students in a class-test:
Find the mean marks scored by a student in the class-test.
Here, the xi’s are large. Now, we apply the step deviation method with a = 350 and h = 100
Now, 
⇒x̄ = 350 - 46
⇒x̄ = 304
Hence, the mean marks scored by a student in the class-test is 304
AI is thinking…
Couldn't generate an explanation.
Generated by AI. May contain inaccuracies — always verify with your textbook.
