10. The mean of the following distribution X: 3 5 7 4 y: 2 5 b is 5. Then the value of b is
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the value of b is 5 only ok na tq for asking this question
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Answer:
b=6
Step-by-step explanation:
We have
2+a+5+b
3×2+5×a+7×5+4×b
=5
⇒=5a+4b+41=35+5a+5b⇒b=6
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