A teacher summarizes grades on an exam by,Min = 26, Q1 = 67, Q2 = 80, Q3 = 87, Max = 100, Mean = 76, Mode = 100, Standard deviat
ion = 76, IQR = 20She incorrectly recorded one of these. Which one do you think it was? Why?
1 answer:
we have
Min=26
Q1=67
Q2=80
Q3=87
Max=100
Mean=76
Mode=100
standard deviation=76
IQR=20
so
In this problem
the mean is equal to the standard deviation
therefore
<h2>The standard deviation is incorrectly</h2>
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Answer:
answer is B
Step-by-step explanation:
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4x+2x=180
6x= 180
Divide by 6
X= 30
Answer:
A. 1/3x + 1/2y <= 4
2x + y <= 12
x >= 0
y >= 0
Step-by-step explanation:
F(-2)= -12
Explanation: 2(-2) = -4
-4 - 8 = -12
3a+20=-25
Subtract 20 from both sides
3a=-45
Divide both sides by 3
a=-15
Final answer: a=-15
