4. Billie's scores on five science tests
were 98, 97, 99, 98, and 96. Her scores
on five history tests were 78, 84, 95,
72, and 79. Which statement is true
about the standard deviations for the
scores?
(1) The standard deviation for the History
scores is greater than the standard
deviation for the science scores.
(2) The standard deviation for the science
scores is greater than the standard
deviation for the history scores.
(3) The standard deviations for both sets
of scores are equal.
(4) More information is needed to
determine the relationship between
the standard deviations.