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Answer :
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### Activity 1: Data Collection Instruments
#### Part 1: Table of Data Collection Instruments
Here's a table with examples of data collection instruments, including their advantages and disadvantages:
| Name of Instrument | Advantage | Disadvantage |
|--------------------|-------------------------------------------------|-----------------------------------------------|
| Surveys | Can gather data from a large audience quickly. | Response bias might occur. |
| Interviews | In-depth data collection. | Time-consuming and resource-intensive. |
| Questionnaires | Cost-effective for large groups. | Limited by the questions asked and may not capture nuances. |
### Part 2: Choosing the Best Instrument for Each Scenario
1. 2.1 For "How many people in your family have diabetes?" a Survey is best. You can directly ask family members about this information.
2. 2.2 For "Gathering data about the choice of career in grade 10 learners at your school," a Questionnaire is appropriate. It can be distributed to the learners to collect their responses efficiently.
3. 2.3 For "Collecting data about the model of cars your teachers are driving at school," Observation is suitable. You can observe and note down the car models in the school parking area.
4. 2.4 For "Gathering data at a hospital about the gender of babies who were born," using Observation or extracting data from hospital records would be best. This provides accurate and reliable information.
5. 2.5 For "How many hours per day do you spend reading?" a Survey with direct questions would be effective. You ask individuals to report their daily reading hours.
6. 2.6 For "How many books have you read in the last 16 weeks?" a combination of Survey and reading logs would be ideal to track reading habits accurately.
7. 2.7 For "How many books have you bought in the last 3 months?" purchasing records and Surveys can be used to collect purchasing data.
8. 2.8 For "Were the books you bought hard copies or soft copies?" a Survey can be used by asking a direct question with predefined answer options.
### Part 3: Summarizing the Grade 11 Test Score Data
We have two sets of data from Grade 11 classes (Gr 11 C and Gr 11 D) representing their Mathematical Literacy test scores. We'll summarize them with the mean and median.
- Grade 11 C:
- Mean score: 60.56%
- Median score: 59.0%
- Grade 11 D:
- Mean score: 67.88%
- Median score: 72.0%
These calculations provide insights into the overall performance of the students in each class. The mean gives the average score, while the median shows the middle score when all are arranged in order.
Feel free to use this detailed explanation to understand data handling through different data collection instruments and statistical summaries!
### Activity 1: Data Collection Instruments
#### Part 1: Table of Data Collection Instruments
Here's a table with examples of data collection instruments, including their advantages and disadvantages:
| Name of Instrument | Advantage | Disadvantage |
|--------------------|-------------------------------------------------|-----------------------------------------------|
| Surveys | Can gather data from a large audience quickly. | Response bias might occur. |
| Interviews | In-depth data collection. | Time-consuming and resource-intensive. |
| Questionnaires | Cost-effective for large groups. | Limited by the questions asked and may not capture nuances. |
### Part 2: Choosing the Best Instrument for Each Scenario
1. 2.1 For "How many people in your family have diabetes?" a Survey is best. You can directly ask family members about this information.
2. 2.2 For "Gathering data about the choice of career in grade 10 learners at your school," a Questionnaire is appropriate. It can be distributed to the learners to collect their responses efficiently.
3. 2.3 For "Collecting data about the model of cars your teachers are driving at school," Observation is suitable. You can observe and note down the car models in the school parking area.
4. 2.4 For "Gathering data at a hospital about the gender of babies who were born," using Observation or extracting data from hospital records would be best. This provides accurate and reliable information.
5. 2.5 For "How many hours per day do you spend reading?" a Survey with direct questions would be effective. You ask individuals to report their daily reading hours.
6. 2.6 For "How many books have you read in the last 16 weeks?" a combination of Survey and reading logs would be ideal to track reading habits accurately.
7. 2.7 For "How many books have you bought in the last 3 months?" purchasing records and Surveys can be used to collect purchasing data.
8. 2.8 For "Were the books you bought hard copies or soft copies?" a Survey can be used by asking a direct question with predefined answer options.
### Part 3: Summarizing the Grade 11 Test Score Data
We have two sets of data from Grade 11 classes (Gr 11 C and Gr 11 D) representing their Mathematical Literacy test scores. We'll summarize them with the mean and median.
- Grade 11 C:
- Mean score: 60.56%
- Median score: 59.0%
- Grade 11 D:
- Mean score: 67.88%
- Median score: 72.0%
These calculations provide insights into the overall performance of the students in each class. The mean gives the average score, while the median shows the middle score when all are arranged in order.
Feel free to use this detailed explanation to understand data handling through different data collection instruments and statistical summaries!
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