QUESTION IMAGE
Question
rhianna checked the available memory on 6 computers in the computer lab. the amounts were: 7 gb 5 gb 3 gb 9 gb 8 gb 1 gb what was the mean absolute deviation of the amount of memory available? if the answer is a decimal, round it to the nearest tenth. mean absolute deviation (mad): gb
Step1: Calcular la media
La media se calcula sumando todos los valores y dividiendo entre el número de valores.
$$\bar{x}=\frac{7 + 5+3 + 9+8 + 1}{6}=\frac{33}{6}=5.5$$
Step2: Calcular las desviaciones absolutas
Calculamos \(|x_i-\bar{x}|\) para cada \(x_i\):
- \(|7 - 5.5|=1.5\)
- \(|5 - 5.5|=0.5\)
- \(|3 - 5.5|=2.5\)
- \(|9 - 5.5|=3.5\)
- \(|8 - 5.5|=2.5\)
- \(|1 - 5.5|=4.5\)
Step3: Calcular la media de las desviaciones absolutas (MAD)
Sumamos las desviaciones absolutas y dividimos entre el número de valores:
$$MAD=\frac{1.5+0.5 + 2.5+3.5+2.5+4.5}{6}=\frac{15}{6}=2.5$$
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\(2.5\)