Divide! hope that helps you
<h3>
Hello there today we will solve your problem</h3>
here is our equation,
,
Now we will plug in our numbers
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simplify it and we get
Class 2 scored better on average
<h3>How to determine which class scored better on average?</h3>
The averages and the standard deviations are given as:
Class 1
Mean score = 7.8
Standard deviation = 1
Class 2
Mean score = 8.1
Standard deviation = 0.2
As a general rule, the smaller the standard deviation; the better the average
Class 2 has a smaller deviation
Hence, class 2 scored better on average
Read more about standard deviation at:
brainly.com/question/28061243
#SPJ1
Answer:
0.92 as a fraction is 23/25
Good luck, hope this helped!
