MathematicsEasy89×since 2002Q5442If the standard deviation of the numbers –1, 0, 1, k is 5\sqrt 55 where k > 0, then k is equal toA26\sqrt 66B6\sqrt 66C2562\sqrt {{{5} \over 6}}265D21032\sqrt {{{10} \over 3}}2310Check answerSkip