Question

1 point
given the data sets below, rank them in order from the lowest to highest mean.

a = {100, 100, 100, 100, 100}
b = {-10, -7, 0, 9, 10}
c = {-2, -1, 0, 1, 2}

answer
a b c

Explanation:

Step1: Calculate mean of A

The mean of a data set is the sum of the values divided by the number of values. For set A: $\text{Mean of A} = \frac{100 + 100 + 100 + 100 + 100}{5} = \frac{500}{5} = 100$.

Step2: Calculate mean of B

For set B: $\text{Sum of B} = -10 + (-7) + 0 + 9 + 10 = (-17) + 19 = 2$. $\text{Mean of B} = \frac{2}{5} = 0.4$.

Step3: Calculate mean of C

For set C: $\text{Sum of C} = -2 + (-1) + 0 + 1 + 2 = 0$. $\text{Mean of C} = \frac{0}{5} = 0$.

Step4: Compare means

Now we compare the means: Mean of C ($0$) < Mean of B ($0.4$) < Mean of A ($100$). So the order from lowest to highest mean is C, B, A.

Answer:

C, B, A