Question

a scientist collected two sample sets of snowfall data. which statistic should he use to compare the spread of the two sets of data?
mode
mean
standard deviation
median

Explanation:

• Mode is the most frequently occurring value, not for spread.
• Mean is the average, measures central tendency.
• Median is the middle value, also for central tendency.
• Standard deviation measures the amount of variation (spread) in a data set. So to compare the spread of two data sets, standard deviation is used.

Answer:

standard deviation