Answer:
To calculate the mean of grouped data, the first step is to determine the midpoint of each interval or class. These midpoints must then be multiplied by the frequencies of the corresponding classes. The sum of the products divided by the total number of values will be the value of the mean.
Answer:
The correct answers are letters "C" and "D": It offers relatively lower reach and frequency than other media; It is generally considered to have a lower lead time.
Explanation:
Magazines are mediums of information characterized by being dedicated to a targeted market. This is because magazines are printed over certain specific matters such as<em> auto magazines, cooking, food, and beverage magazines </em>or <em>computer and electronics magazines.</em>
<em>Disadvantages of magazines imply the information portrayed might not be updated since most of them are available for sale periodically -e.g. once a week, month- making an advertisement difficult to be kept up. This situation also means that magazines frequency is lower compared to other media such as newspapers whose reach is higher as well.</em>
Based on the correlational analysis of X and Y that is given, we can infer that there is a linear relationship between X and Y.
<h3>What does the correlation analysis show?</h3>
The Pearson correlation coefficient shows if there is a linear relationship between given variables.
In the given table, the Pearson Correlation coefficient is not 0 for either variable which means that a linear relationship does in fact exist between the variables.
Find out more on the Pearson correlation coefficient at brainly.com/question/24084533.
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