A teacher wants to create a graph of the students' scores on the final exam and see what the distribution looks like. The teache
1 answer:
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Answer:
2.3%
Step-by-step explanation:
The formula to convert x into z distribution is
Where z is the test statistic
x is what we are looking for (in this case 37)
is the mean (in this case, it is 25)
is the standard deviation (we have 6)
<em>Plugging these into the formula, we get:</em>
Thus we can say we want
<u>Note: </u>
The table given is for any z where
Thus, now we have:
0.0228 into percentage is 0.0228 * 100 = 2.28%
Rounded, we get 2.3%
Third answer choice is right.
Answer:
136 mm²
Step-by-step explanation:
A = 136