Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 Quantitative Aptitude Elementary Statistics

आंकड़ों का माध्य 13 है, तो x का मान ज्ञात कीजिये।

8, 12, 7, 15, 9, 21, x

1
9
2
29
3
17
4
19
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