NUR 200 - Normality of Distribution (Exam 2) UPDATED ACTUAL
Questions and CORRECT Answers
most parametric statistics require that the variables being
studied are normally distributed, normal curve, can be
Normality of the Distribution
displayed in a table or figure, display the frequency of a
continuous variable
has a symmetrical or equal distribution of scores around
the mean with a small number of outliers in the 2 tails, uni-
Normal curve modal, continuous values, expression of statistical theory,
theoretical frequency distribution of all possible scores, no
real distribution exactly fits the normal curve
method of organizing data by listing every possible value
Frequency table in the first column of numbers and the frequency of each
value as the second column
- Step 1: sort the patients' ages from lowest to highest
scores
- Step 2: each age value is tallied to create the frequency,
Normality of a Distribution example steps
create an ungrouped frequency distribution
- Step 3: if most ages have frequency of 1, better to group
into ranges of values
researchers list all categories of the variable on which they
Ungrouped frequency distribution
have data and tally each datum on the listing
must be exhaustive, grouping should be devised to pro-
Ranges of values for normality of a distribution vide the greatest possible meaning to the purpose of the
study
Exhaustive datum will fit into at least one category
What measurements are equal for a normal curve? mean, median and mode are equal
any frequency distribution that is not symmetrical, mean,
Skewness median and mode are not equal, interferes with the valid-
ity of many statistical analyses
Questions and CORRECT Answers
most parametric statistics require that the variables being
studied are normally distributed, normal curve, can be
Normality of the Distribution
displayed in a table or figure, display the frequency of a
continuous variable
has a symmetrical or equal distribution of scores around
the mean with a small number of outliers in the 2 tails, uni-
Normal curve modal, continuous values, expression of statistical theory,
theoretical frequency distribution of all possible scores, no
real distribution exactly fits the normal curve
method of organizing data by listing every possible value
Frequency table in the first column of numbers and the frequency of each
value as the second column
- Step 1: sort the patients' ages from lowest to highest
scores
- Step 2: each age value is tallied to create the frequency,
Normality of a Distribution example steps
create an ungrouped frequency distribution
- Step 3: if most ages have frequency of 1, better to group
into ranges of values
researchers list all categories of the variable on which they
Ungrouped frequency distribution
have data and tally each datum on the listing
must be exhaustive, grouping should be devised to pro-
Ranges of values for normality of a distribution vide the greatest possible meaning to the purpose of the
study
Exhaustive datum will fit into at least one category
What measurements are equal for a normal curve? mean, median and mode are equal
any frequency distribution that is not symmetrical, mean,
Skewness median and mode are not equal, interferes with the valid-
ity of many statistical analyses
