Answer:
A
Step-by-step explanation:
Answer:
1/4
Step-by-step explanation:
Probability = 3/(5+3+4)
= 3/12 or 1/4
The error made while find the mean absolute deviation was: C. When calculating the distances to the mean, the student forgot to take the absolute values.
<h3>What is the Mean Absolute Deviation?</h3>
The mean absolute deviation is simply the average of the sum of the "absolute difference" of the mean and each data point.
In the calculation of the student, after getting the difference of the mean and each data point, the student failed to take the absolute value, and still kept the minus sign included.
Therefore, the error was: C. When calculating the distances to the mean, the student forgot to take the absolute values.
Learn more about the mean absolute deviation on:
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Answer:
A
Step-by-step explanation:
Cross multiply,
9*12 = x*3
x = 3*12
x = 36
