78.0k views
4 votes
On the first test, the mean is 70, the standard deviation is 5, and your score is 80. on the second test, the mean is 70, the standard deviation is 15, and your score is 85. compared to other students, how well did you do on the two tests?

1 Answer

3 votes

85+88+87+80+x all divided by 5= 82

340+x=410

410-340=70

User Pditommaso
by
8.2k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories