The weights of new born babies (in kg) in a hospital on a particular day are as follows: 2.2, 2.2, 2.1, 2.7, 2.6, 3.0, 2.5, 2.9, 2.8, 3.1, 2.5, 2.8, 2.7, 2.9, 2.4 Rearrange the weights in descending order. Determine the highest weight. Determine the lowest weight.   Determine the range. How many babies were born on that day? How many babies weigh below 2.5 kg? How many babies weigh more than 2.8? How many babies weigh 2.8 kg?

Answer

### Step-by-Step Solution

1. **Rearranging the Weights in Descending Order:**
- The given weights are: 2.2, 2.2, 2.1, 2.7, 2.6, 3.0, 2.5, 2.9, 2.8, 3.1, 2.5, 2.8, 2.7, 2.9, 2.4.
- Rearranging these weights in descending order gives us:
- 3.1, 3.0, 2.9, 2.9, 2.8, 2.8, 2.7, 2.7, 2.6, 2.5, 2.5, 2.4, 2.2, 2.2, 2.1.

2. **Determining the Highest Weight:**
- From the rearranged list, the highest weight is the first value:
- **Highest Weight = 3.1 kg.**

3. **Determining the Lowest Weight:**
- From the rearranged list, the lowest weight is the last value:
- **Lowest Weight = 2.1 kg.**

4. **Determining the Range:**
- The range is calculated by subtracting the lowest weight from the highest weight:
- **Range = Highest Weight - Lowest Weight = 3.1 kg - 2.1 kg = 1.0 kg.**

5. **Counting the Total Number of Babies:**
- Count the number of weights provided:
- There are 15 weights listed.
- **Total Number of Babies = 15.**

6. **Counting Babies Weighing Below 2.5 kg:**
- Identify weights below 2.5 kg from the list:
- The weights below 2.5 kg are: 2.2, 2.2, 2.1, 2.4 (4 weights).
- **Number of Babies Below 2.5 kg = 4.**

7. **Counting Babies Weighing More Than 2.8 kg:**
- Identify weights more than 2.8 kg from the list:
- The weights more than 2.8 kg are: 3.1, 3.0, 2.9, 2.9 (4 weights).
- **Number of Babies Weighing More Than 2.8 kg = 4.**

8. **Counting Babies Weighing Exactly 2.8 kg:**
- Identify how many babies weigh exactly 2.8 kg:
- The weights that are exactly 2.8 kg are: 2.8, 2.8 (2 weights).
- **Number of Babies Weighing 2.8 kg = 2.**

### Summary of Answers:
- Rearranged Weights: 3.1, 3.0, 2.9, 2.9, 2.8, 2.8, 2.7, 2.7, 2.6, 2.5, 2.5, 2.4, 2.2, 2.2, 2.1.
- Highest Weight: 3.1 kg
- Lowest Weight: 2.1 kg
- Range: 1.0 kg
- Total Number of Babies: 15
- Babies Below 2.5 kg: 4
- Babies Weighing More Than 2.8 kg: 4
- Babies Weighing Exactly 2.8 kg: 2