railway RRB Technician Grade 1 Mock Test 2024 Quantitative Aptitude Elementary Statistics

निम्नलिखित आँकड़ों के लिए प्रसरण और मानक विचलन ज्ञात कीजिए:

57, 64, 43, 67, 49, 59, 44, 47, 61, 59

1
15.3, 1.63
2
66.2, 8.13
3
46, 13
4
56.3 9.14
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