Question

john measures the length of one side of his room with a tape measure. he repeats his measurements four times and records them in the table below:
trial 1: 4.50 m, trial 2: 4.60 m, trial 3: 4.30 m, trial 4: 4.40 m
table 1: recorded distances of one side of john’s room.
find the average among the measurements taken by john.
multiple choice
4.50 m
4.45 m
4.45
4.5 m

Explanation:

Step1: Sum the measurements

The measurements are 4.50 m, 4.60 m, 4.30 m, and 4.40 m. Sum them: \(4.50 + 4.60 + 4.30 + 4.40 = 17.80\)

Step2: Divide by number of trials

There are 4 trials. Average = \(\frac{17.80}{4} = 4.45\) m

Answer:

4.45 m (corresponding to the option with "4.45 m")