STATISTICS - 7.1.
Quality content you can rely on!
The area under the normal curve to the right of ir equals _______. - Answer: 1/2
Cross-sectional Studies - Answer: Cross-sectional studies are observational studies
that collect information about individuals at a specific point in time or over a very short
period of time.
Case-control Studies - Answer: Case-control studies are retrospective, meaning that
they require individuals to look back in time or require the researcher to look at existing
records. In case-control studies, individuals that have a certain characteristic are
matched with those that do not.
Cohort study - Answer: A cohort study first identifies a group of individuals to participate
in the study (the cohort). The cohort is then observed over a period of time (sometimes
a long period of time). Over this time period, characteristics about the individuals are
recorded and some individuals in the study will be exposed to certain factors (not
intentionally) and others will not. At the end of the study the value of the response
variable is recorded for the individuals.
What happens to the graph of the normal curve as the mean increases? - Answer: The
graph of the normal curve slides right.
What happens to the graph of the normal curve as the standard deviation decreases? -
Answer: The graph of the normal curve compresses and becomes steeper.
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
Quality content you can rely on!
The area under the normal curve to the right of ir equals _______. - Answer: 1/2
Cross-sectional Studies - Answer: Cross-sectional studies are observational studies
that collect information about individuals at a specific point in time or over a very short
period of time.
Case-control Studies - Answer: Case-control studies are retrospective, meaning that
they require individuals to look back in time or require the researcher to look at existing
records. In case-control studies, individuals that have a certain characteristic are
matched with those that do not.
Cohort study - Answer: A cohort study first identifies a group of individuals to participate
in the study (the cohort). The cohort is then observed over a period of time (sometimes
a long period of time). Over this time period, characteristics about the individuals are
recorded and some individuals in the study will be exposed to certain factors (not
intentionally) and others will not. At the end of the study the value of the response
variable is recorded for the individuals.
What happens to the graph of the normal curve as the mean increases? - Answer: The
graph of the normal curve slides right.
What happens to the graph of the normal curve as the standard deviation decreases? -
Answer: The graph of the normal curve compresses and becomes steeper.
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
