Answer:
17
Step-by-step explanation:
Given:
e = 15
f = 2
To Find:
e - -f
Solution:
e - -f
= e + f
= 15 + 2
Therefore, 17
PLZ MARK ME AS BRAINLIEST!!!
Exact form: x = -81/2
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decimal form: x = -40.5
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mixed number form: x = -40 1/2
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(please give thanks if this was helpful)
Answer:
.60
Step-by-step explanation:
The values is 6 tenths
Answer:
i need points lol
Step-by-step explanation:
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Answer:
0.97725
Step-by-step explanation:
Given that Professor Heinz has given the same multiple-choice final exam in his Principles of Microeconomics class for many years. After examining his records from the past 10 years, he finds that the scores have a mean of 76 and a standard deviation of 12.
i.e.
Std error of mean = sigma/sqrt n = 2
Thus the sample mean is N(76,2)
Required probability = probability that a class of 36 students will have an average greater than 72 on Professor Heinz's final exam.
=