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wrms8379
14.02.2020 •
Mathematics
In order to study whether there is a relationship between gender and age at marriage, 50 couples were randomly selected and the age of the bride and groom were recorded.
Which of the following would be a meaningful display of the data from this study?
Side-by-side boxplots
A scatterplot
A histogram
A pie chart
A two-way table
I would also like to confirm my
A study seeks to answer the question, "Does Vitamin C level in the breast milk of new mothers reduce the risk of allergies in their breastfed infants?" The study concluded that high levels of vitamin C (measured in milligrams) were associated with a 30 percent lower risk of allergies in the infants.
In this scenario, "presence of allergies" is what type of variable?
Categorical
Quantitative
Solved
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Ответ:
Part 1) Side by side box-plots
Part 2) Presence of allergies is a Categorical variable
Step-by-step explanation:
Part 1)
Study: "Relationship between gender and age at marriage"
Categorical variable: Gender.
Quantitative variable: Age at marriage.
For this problem side by side box-plots would be a good choice to show relationship between quantitative variable "age at marriage" and categorical variable "gender".
Advantage of using side by side box-plots is that it shows five point summary of the data which are;
1. minimum value
2. Lower quartile
3. Median value
4. Upper quartile
5. Maximum value
Part 2)
Study: "Does Vitamin C level in the breast milk of new mothers reduce the risk of allergies in their breastfed infants?"
Presence of allergies: Either presence of allergies exists or it doesn't, this is simple yes/no therefore, it is a categorical variable.
Levels of vitamin C: Since levels of vitamin C can be measured (in milligrams) and thus have numerical value therefore, it is a quantitative variable.
Ответ:
A linear function is a function that follows the same rule throughout.
So the answer is the first one since x goes up by one every time (n+1) and y goes up by
Hope this helps!