" 34."165,195,255,285,345,?

165, 195, 255, 285, 345, (.......) (a) 375 (b) 420 (c) 435 (d) 390

Complete the series 165,195,255,285, "……" ,435

Answer the following : Find variance and S.D. for the following set of numbers. 125, 130, 150, 165, 190, 195, 210, 230, 245, 260

The median from the following data is {:("Mid-value","Frequency"),(115,6),(125,25),(135,48),(145,72),(155,116),(165,60),(175,38),(185,22),(195,3):}

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