Answered

person A scored an 87 on his physics test class average was 80 with a standard deviation of 5. person B scored an 82 on the exam her xlass average was 73 with standard deviation of 6. who scored better with respect to their classes?​

Sagot :

GITTETARTGO

Answer:

A=1.4 B=1.5

Step-by-step explanation:

formula:

z=x-mean / standard deviation

person A: 87-80/5= 1.4

person b: 82-73/6 =1.5

person A scored better, because person b is further from the mean.