SOC 230 STATS QUIZ 3

What term refers to a single number that describes what’s typical or average about a distribution?

Which measure should be used?

What kind of measure shows the category/score/percentage in the distribution with the most common value?

Which measure can only be used for nominal variables?

Which measure splits a distribution exactly in half?

Which level of measurement can be used with median?

What term describes a score at or below a specific percentage of the distribution?

Which quartile is also referred to as the 25th percentile?

Which quartile refers to the 50th percentile and also the median?

Which quartile is also referred to as the 75th percentile?

What term refers to the sum of all scores divided by the total number of scores?

What level of measurement can mean use?

What’s the formula for frequency mean?

Which property of the mean requires interval-ratio data?

Which property of the mean states that the mean is the balance point?

Which property of the mean states that the mean is affected by extreme values like outliers?

What kinda distribution has mirrored left and right halves, where the mode, mean, and median are all equal?

What kind of distribution has a long tail stretching to the right due to a small number of extremely high values, where the mean is bigger than the median?

What kind of distribution has a long tail stretching to the left by a small number of extremely low values, where the mean is less than the mean?

What’s the first step to choosing a measure?

If nominal, choose what?

If ordinal, choose what?

If interval-ratio and skewed, use what?

If interval-ratio and symmetrical, choose what?