Clever | Portal Login - Powered PRD.06_SM.2_SY Screwy G exp Inbox (955) - 889 A ALEKS-Amarian UpStudy Thoth A www-awy.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNsIkr7j8P3jH-IQUhQ7UhjLUg6NO6tj9qFItz6nQLOPsPMGhYexjXecyRcT1HqxxA6CecOvdKuHbIv4wcPmg_rc54... 12-2,3 Data Question 3 of 15 (1 point) | Question Attempt: 1 of Unilmited Amarian $$ \checkmark 1 $$ $$ \checkmark 2 $$ 3 4 5 6 7 8 9 10 11 12 13 A scientist wants to find the average mass of fish living in a large pond. So she will use the masses of a sample of fish from the pond to find the average mass. Answer the questions below. (a) Which unit(s) could be used for the unit of measurement? Check all that apply. kilograms grams feet meters milligrams (b) Which of the procedures below would be the best way to find the average mass? Pick 2 fish from a shallow region of the pond and weigh each of them. Pick 42 fish from a shallow region of the pond and estimate their masses. Randomly pick 2 fish from the entire pond and estimate their masses. Randomly pick 42 fish from the entire pond and weigh each of them. Check Save For Later Submit Assignment © 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Accessibility Sign out 2 Mar 14 12:57

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UpStudy AI · Accepted Answer

Let's break down the problem step by step.

### Part (a): Units of Measurement

We need to identify which units could be used for measuring the mass of fish. The options provided are:

- kilograms
- grams
- feet
- meters
- milligrams

**Analysis:**
- **Kilograms (kg)**: A standard unit for measuring mass.
- **Grams (g)**: Another standard unit for measuring mass, commonly used for smaller weights.
- **Milligrams (mg)**: A smaller unit of mass, also valid for measuring mass.
- **Feet (ft)**: A unit of length, not applicable for mass.
- **Meters (m)**: Another unit of length, not applicable for mass.

**Conclusion for Part (a):** The applicable units for measuring mass are:
- kilograms
- grams
- milligrams

### Part (b): Best Procedure to Find Average Mass

We need to evaluate the procedures provided to determine which would be the best way to find the average mass of fish.

1. **Pick 2 fish from a shallow region of the pond and weigh each of them.**
   - This is not a good method because it is not representative of the entire pond.

2. **Pick 42 fish from a shallow region of the pond and estimate their masses.**
   - This is also not ideal as it only samples from a shallow region, which may not represent the entire pond.

3. **Randomly pick 2 fish from the entire pond and estimate their masses.**
   - While random sampling is good, 2 fish is too small a sample size to accurately estimate the average mass.

4. **Randomly pick 42 fish from the entire pond and weigh each of them.**
   - This is the best method as it uses a larger sample size and random selection, which helps ensure that the sample is representative of the entire population.

**Conclusion for Part (b):** The best procedures to find the average mass are:
- Randomly pick 42 fish from the entire pond and weigh each of them.

### Final Answers:
- **Part (a):** kilograms, grams, milligrams
- **Part (b):** Randomly pick 42 fish from the entire pond and weigh each of them.
- **Part (a):** kilograms, grams, milligrams - **Part (b):** Randomly pick 42 fish from the entire pond and weigh each of them.

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