700 families were studied and number of girls per family use recorded : number of girls in a family 2,1,0 number of families 0,0,study the data and find the probabilty of families having 2 girls , 1 girl and no.girl also cbeck whether the sum of these probability is 1
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20371 प्रोबेबिलिटी कर लो नंबर ऑफ गर्ल्स इन सुच ए फेदर 10 अक्टूबर स्विमिंग प्रोबेबिलिटी ऑफ नॉट नो द प्रोबेबिलिटी ऑफ फैमिली सेविंग जीरो जीरो स्टडी द डाटा 92109 फैमिली
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