Question

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find the mean of the data in the dot plot below.
years
time it took each of mias friends
to learn to ride a bike
0 1 2 3 4 5
number of years
show calculator

Explanation:

Step1: Identify data points

From the dot plot, the data points are 1, 2, 3, 4 (each with one dot, so one occurrence each).

Step2: Calculate sum of data

Sum = \(1 + 2 + 3 + 4 = 10\)

Step3: Calculate mean

Mean = \(\frac{\text{Sum}}{\text{Number of data points}} = \frac{10}{4} = 2.5\)

Answer:

2.5