What is the standard deviation in the numbers 0, 1, 2, 3.....9, 10?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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**Mathematics and Logical Reasoning Problem**

**1. Question on Standard Deviation:**
What is the standard deviation in the numbers 0, 1, 2, 3, ..., 9, 10?

**2. Animal Feed Consumption Problem:**

- **Scenario 1:** 
  - 2 rabbits, 3 sheep, and 1 newt consume 24 lbs of feed per day.

- **Scenario 2:**
  - 6 rabbits and 1 sheep consume 16 lbs of feed per day.

- **Scenario 3:**
  - 2 sheep and 3 newt consume 18 lbs of food a day.

**Problem to Solve:**
How much food would 4 rabbits and 6 sheep need per day?

**Note:** The problem requires solving two parts: understanding and calculating the standard deviation for a given set of numbers and determining the feed requirement for a different combination of animals based on provided scenarios.
Transcribed Image Text:**Mathematics and Logical Reasoning Problem** **1. Question on Standard Deviation:** What is the standard deviation in the numbers 0, 1, 2, 3, ..., 9, 10? **2. Animal Feed Consumption Problem:** - **Scenario 1:** - 2 rabbits, 3 sheep, and 1 newt consume 24 lbs of feed per day. - **Scenario 2:** - 6 rabbits and 1 sheep consume 16 lbs of feed per day. - **Scenario 3:** - 2 sheep and 3 newt consume 18 lbs of food a day. **Problem to Solve:** How much food would 4 rabbits and 6 sheep need per day? **Note:** The problem requires solving two parts: understanding and calculating the standard deviation for a given set of numbers and determining the feed requirement for a different combination of animals based on provided scenarios.
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**Educational Content: Statistical Concepts and Problem-Solving**

**Standard Deviation:**
- **Question:** What is the standard deviation in the numbers 0, 1, 2, 3, ..., 9, 10?
- **Explanation:** The standard deviation is a measure of the amount of variation or dispersion in a set of values. It indicates how much individual numbers in a dataset differ from the mean (average) of the dataset.

**Animal Feed Consumption Problem:**
- **Scenario 1:** 
  - 2 rabbits, 3 sheep, and 1 newt consume 24 lbs of feed per day.
- **Scenario 2:** 
  - 6 rabbits and 1 sheep consume 16 lbs of feed per day.
- **Scenario 3:** 
  - 2 sheep and 3 newt consume 18 lbs of food a day.
  
- **Question:** How much food would 4 rabbits and 6 sheep need per day?

**Approach:**
1. **Identify the variables:** Let R = rabbit, S = sheep, N = newt.
2. **Formulate equations based on the scenarios:**
   - \(2R + 3S + 1N = 24\)
   - \(6R + 1S = 16\)
   - \(2S + 3N = 18\)
3. **Determine the individual consumption rates for rabbits and sheep.**
4. **Calculate the total feed needed for 4 rabbits and 6 sheep based on the rates determined.**

**Note:** This problem involves algebraic manipulation and solving systems of equations to understand how each type of animal contributes to the total feed consumption.
Transcribed Image Text:**Educational Content: Statistical Concepts and Problem-Solving** **Standard Deviation:** - **Question:** What is the standard deviation in the numbers 0, 1, 2, 3, ..., 9, 10? - **Explanation:** The standard deviation is a measure of the amount of variation or dispersion in a set of values. It indicates how much individual numbers in a dataset differ from the mean (average) of the dataset. **Animal Feed Consumption Problem:** - **Scenario 1:** - 2 rabbits, 3 sheep, and 1 newt consume 24 lbs of feed per day. - **Scenario 2:** - 6 rabbits and 1 sheep consume 16 lbs of feed per day. - **Scenario 3:** - 2 sheep and 3 newt consume 18 lbs of food a day. - **Question:** How much food would 4 rabbits and 6 sheep need per day? **Approach:** 1. **Identify the variables:** Let R = rabbit, S = sheep, N = newt. 2. **Formulate equations based on the scenarios:** - \(2R + 3S + 1N = 24\) - \(6R + 1S = 16\) - \(2S + 3N = 18\) 3. **Determine the individual consumption rates for rabbits and sheep.** 4. **Calculate the total feed needed for 4 rabbits and 6 sheep based on the rates determined.** **Note:** This problem involves algebraic manipulation and solving systems of equations to understand how each type of animal contributes to the total feed consumption.
### Step 1
As per our guidelines, we have to answer the first question if multiple questions are posted at a time. Please repost the rest to be answered.

### Step 2
We know that,

\[ \sigma = \sqrt{\frac{\sum (X - \mu)^2}{N}} \]

where \(\mu\) = mean of the observations.

Given: \(N = 10\)  
Mean \((\mu) = \frac{1+2+3+\ldots+10}{10} = \frac{55}{10} = 5.5\)

### Step 3
\[ \Sigma (X-\mu)^2 = (1-5.5)^2 + (2-5.5)^2 + \ldots + (10-5.5)^2 \]  
= 82.5  

\[ \Sigma (X-\mu)^2 / N = 82.5 / 10 = 8.25 \]

Standard deviation = \(\sqrt{8.25} = \textbf{2.872281323}\).
Transcribed Image Text:### Step 1 As per our guidelines, we have to answer the first question if multiple questions are posted at a time. Please repost the rest to be answered. ### Step 2 We know that, \[ \sigma = \sqrt{\frac{\sum (X - \mu)^2}{N}} \] where \(\mu\) = mean of the observations. Given: \(N = 10\) Mean \((\mu) = \frac{1+2+3+\ldots+10}{10} = \frac{55}{10} = 5.5\) ### Step 3 \[ \Sigma (X-\mu)^2 = (1-5.5)^2 + (2-5.5)^2 + \ldots + (10-5.5)^2 \] = 82.5 \[ \Sigma (X-\mu)^2 / N = 82.5 / 10 = 8.25 \] Standard deviation = \(\sqrt{8.25} = \textbf{2.872281323}\).
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