c. Audiometers.
d. Diaries placed in a panel of households.
e. Personal interviews.
A bar chart where the values of a variable are placed along the X-axis and the absolute
or relative frequency along the Y-axis is called a and can be developed from the .
a. bar graph, cumulative data
b. frequency polygon, one-way frequency tabulation
c. cumulative distribution graph, cumulative data
d. histogram, uncoded data
e. histogram, one-way frequency tabulation
In a recent survey, those who brushed their teeth often under-reported the activity, while
those who brushed their teeth less frequently over-reported their dental hygiene
behavior. The possible cause for differences in scores could best be attributed to
a. a true difference in the characteristic being measured.
b. differences due to situational factors.
c. differences due to temporary personal factors.