chanavictor2353 chanavictor2353

03-01-2023
Mathematics

contestada

Helena scored a 75 on a history exam and an 80 on a science test. the class average

for the history test was 70 with a standard deviation of 2. 5. the class average for

the science test was 75 with a standard deviation of 5. she believes that she did

better in science than history in comparison with her class. explain her error

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