The better statistics to use to compare the penguin heights is the median and standard deviation. The correct options are A and B.
What is a mean?
Mean is defined as the ratio of the sum of the number of data sets to the total number of data.
The Penguin Heights at City view Zoo (in cm) is:
S = {35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45}
Compute the mean and median of the data:
Mean = ( 35 + 36 + 37 + 38 + 39 + 40 + 41 + 42 + 43 + 44 + 45 ) / 11
Mean = 40
Median = 40
The mean and median are the same. This implies that the height of penguins is normally distributed.
So, either the mean or median could be the best measure of the centre.
One measure of a dataset's spread or dispersion from its average value is its standard deviation. The standard deviation calculates the distribution of values' absolute variability.
The standard deviation increases as the spread or variability of the data set increases, which also increases the magnitude of the value's deviation from the average.
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