Mathematics · Statistics
प्रेक्षणों (observations) के दो समूहों के लिए निम्नलिखित सांख्यिकी पर विचार करें: प्रेक्षण I: आकार (Size) = 10, माध्य (Mean) = 2, प्रसरण (Variance) = 2 प्रेक्षण II: आकार (Size) = n, माध्य (Mean) = 3, प्रसरण (Variance) = 1 यदि इन दोनों प्रेक्षणों के संयुक्त सेट का प्रसरण 179 है, तो n का मान किसके बराबर है?
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