निम्नलिखित सारणी से माध्य तथा प्रमाप विचलन ज्ञात कीजिए :
Calculate mean and standard deviation from the following table :
टाकार
3.5
4.5
5.5
6.5
Size
आवृत्ति
3
7
22
60
Frequency
7.5
8.5
9.5
85
32
8
Answers
Answered by
1
Answer:
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