The mean, median, and mode of the weights of the people shown are;
a) Mean: 80 kg, Median: 76 kg, Mode: 61 kg.
In Mathematics and Statistics, the mean or average for any set of data can be calculated by using the following formula:
Mean = ∑x/n
Where:
∑x represents the sum of all data values.
n represents the total number of data items.
Based on the information provided, the total sum of the weight can be calculated as follows;
Σx = 105 + 53 + 76 + 91 + 120 + 61 + 55 + 98 + 61
ΣX = 720
Now, we can determine the mean weight as follows;
Mean = 720/9
Mean = 80
Median is the middle number of a sorted data set, which is when the weights are arranged in an ascending order the least to greatest as follows;
53,55,61,61,76,91,98,105,120
Median = 76.
Mode denotes the value that appears most often or occurs repeatedly in a given data set i.e the number with highest number of frequency in a given data set;
Mode = 61.
Complete Question;
Type your answers into the boxes. Find the mean, median, and mode of the weights of the people shown.
a) Mean: ________ kg, Median: ________ kg, Mode: ________ kg
b) Mean: ________ lbs, Median: ________ lbs, Mode: ________ lbs
c) Mean: ________ g, Median: ________ g, Mode: ________ g
d) Mean: ________ oz, Median: ________ oz, Mode: ________ oz