mubariz0987 mubariz0987 18-12-2020 Mathematics contestada The breaking strength of 20 test pieces of certain string. 95,103,97,130,96,73,78,95,89,68,82,79,69,67,83,108,94,87,93,117 Find: I. Mean, Median, Mode II. Q1 and Q3 and Q.D III. Variance and standard deviation