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NEW QUESTION # 144
An analyst is designing a dashboard to determine which site has the highest percentage of new customers. The analyst must choose an appropriate chart to include in the dashboard. The following data is available:
Which of the following types of charts should be considered to BEST display the data?
Answer: B
Explanation:
This is because a bar chart is a type of chart that shows the value or the amount of a single variable for different categories or groups, such as the percentage of new customers for different sites in this case. A bar chart can be used to display and analyze the comparison, ranking, or proportion among the categories or groups, as well as identify any differences, similarities, or outliers in the data. For example, a bar chart can show which site has the highest or lowest percentage of new customers, as well as show how much each site contributes to the total percentage of new customers. The other types of charts are not the best charts to display the data. Here is why:
* A line chart is a type of chart that shows the change or the trend of a single variable over time, such as the percentage of new customers over months or years in this case. A line chart can be used to display and analyze the movement, cycle, or pattern of the variable, as well as identify any peaks, valleys, or fluctuations in the data. For example, a line chart can show how the percentage of new customers increases or decreases over time, as well as show if there are any seasonal or periodic variations in the data.
* A pie chart is a type of chart that shows the proportion or the percentage of a single variable for different categories or groups, such as the percentage of new customers for different sites in this case. A pie chart can be used to display and analyze the composition, distribution, or share of the variable, as well as identify any segments, slices, or fractions in the data. For example, a pie chart can show how much each site represents of the total percentage of new customers, as well as show if there are any dominant or minor sites in the data.
* A scatter chart is a type of chart that shows the relationship between two variables for each observation or unit in a data set, such as the percentage of new customers and another variable for each site in this case. A scatter chart can be used to display and analyze the correlation, trend, or pattern among the variables, as well as identify any outliers or clusters in the data. For example, a scatter chart can show if there is a positive, negative, or no correlation between the percentage of new customers and another variable, such as sales revenue or customer satisfaction.
NEW QUESTION # 145
Given the following table:
Which of the following describes the data quality issues with theagedata?
Answer: A
Explanation:
Data consistency refers to ensuring that all values in a dataset follow a uniform format and structure. In this dataset:
* One age value is recorded as "65F," which includes anextra character (F)that makes it inconsistent with other numeric age values.
* The date formats are inconsistent (6/1/22 vs. 6/19/2022), but this is unrelated to the age issue.
* Option A (Completeness):Incorrect. There are no missing values in the age column.
* Option B (Consistency):Correct.The age data should be consistently formatted asnumeric values only, without extra characters like "F."
* Option C (Accuracy):Incorrect. There is no evidence that theactual age valuesare incorrect, only that they are formatted inconsistently.
* Option D (Manipulation):Incorrect. There is no indication that the data was intentionally altered for deception.
Reference:TheCompTIA Data+ Certification Exam Objectiveslistdata consistencyas a crucial dimension of data quality.
NEW QUESTION # 146
Which of the following descriptive statistical methods are measures of central tendency? (Choose two.)
Answer: B,C
Explanation:
Mean and mode are measures of central tendency, which describe the typical or most common value in a distribution of data. Mean is the arithmetic average of all the values in a dataset, calculated by adding up all the values and dividing by the number of values. Mode is the most frequently occurring value in a dataset. Other measures of central tendency include median, which is the middle value when the data is sorted in ascending or descending order.
NEW QUESTION # 147
Which of the following are the first steps a company should take after discovering a data breach? (Select two).
Answer: A,C
Explanation:
Comprehensive and Detailed In-Depth
Upon discovering a data breach, it is crucial for a company to take immediate and appropriate actions to mitigate damage, comply with legal obligations, and maintain trust with stakeholders. The initial steps should focus on understanding the scope of the breach and informing those affected.
Option B:Notify affected users.
Rationale:Timely notification to individuals whose data has been compromised is often a legal requirement and is essential for allowing affected parties to take protective measures, such as changing passwords or monitoring financial accounts.
Option C:Assess the breach.
Rationale:Conducting a thorough assessment to determine the nature, extent, and source of the breach is critical. This assessment informs the company's response strategy, helps in containing the breach, and prevents future incidents.
Option A:Delete data.
Rationale:Deleting data immediately after a breach is not advisable, as it may be needed for forensic analysis to understand the breach and to comply with legal investigations.
Option D:Back up the system.
Rationale:While regular backups are a best practice, initiating a backup immediately after discovering a breach may inadvertently save compromised data or malware. It's essential first to assess and ensure the integrity of the system before performing backups.
Option E:Issue a press release.
Rationale:Public communication is important but should follow internal assessments and direct notifications to affected users. Premature public statements without a full understanding of the breach can lead to misinformation.
Option F:Delay reporting.
Rationale:Delaying the reporting of a data breach can have legal repercussions and erode trust with customers and stakeholders. Prompt reporting is both a legal obligation in many jurisdictions and a best practice.
Reference:
partners.comptia.org
NEW QUESTION # 148
Which of the following contains alphanumeric values?
Answer: C
Explanation:
Explanation
Alphanumeric values are values that contain both letters and numbers, such as A3J7. The other options are numeric values, as they contain only numbers, such as 10.1E2, 13.6, and 1347. Reference: Guide to CompTIA Data+ and Practice Questions - Pass Your Cert
NEW QUESTION # 149
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