H.W by Mahmudul Hasan Anik - Saturday, 23 October 2021, 12:18 AM Number of replies: 0 (03). Mean = 14.5Standard deviation = 5.22Variance = 27.25(06). Mean = 1110Standard deviation = 157.79Variance = 24,900(07). Mean = 21Standard deviation = 16.09Variance = 259 Permalink