Given the following values 28, 32, 33, 23, 20, 14The population mean and population standard deviation are approximately:
Question
Given the following values 28, 32, 33, 23, 20, 14The population mean and population standard deviation are approximately:
Solution 1
To calculate the population mean (average), you add up all the numbers and then divide by the number of values.
Step 1: Add up all the numbers: 28 + 32 + 33 + 23 + 20 + 14 = 150
Step 2: Divide by the number of values: 150 / 6 = 25
So, the population mean is 25.
To calculate the population standard deviation, you first subtract the mean from each number and square the result, then find the average of these squared differences, and finally take the square root of that average.
Step 1: Subtract the mean from each number and square the result: (28-25)^2 = 9 (32-25)^2 = 49 (33-25)^2 = 64 (23-25)^2 = 4 (20-25)^2 = 25 (14-25)^2 = 121
Step 2: Find the average of these squared differences: (9 + 49 + 64 + 4 + 25 + 121) / 6 = 45.33
Step 3: Take the square root of that average: sqrt(45.33) = 6.73
So, the population standard deviation is approximately 6.73.
Solution 2
To calculate the population mean (average), you add up all the numbers and then divide by the number of values.
Step 1: Add up all the numbers: 28 + 32 + 33 + 23 + 20 + 14 = 150
Step 2: Divide by the number of values: 150 / 6 = 25
So, the population mean is 25.
To calculate the population standard deviation, you first subtract the mean from each number and square the result. Then,
Similar Questions
Given the population mean is 22 with a population standard deviation of 2.5, find the values below for a sample size of 35.
A data set contains the following six values.13 24 20 36 29 24Find the population standard deviation. (enter the population standard deviation rounded to 3 decimal places)
A normal population has mean μ =33 and standard deviation σ =7.(a) What proportion of the population is between 18 and 29?
Below is a table showing data collected from a population. 12151342981622161612 Calculate the standard deviation.5.375.6211.256.26None of the above
A population has mean =μ35 and standard deviation =σ5. Find μx and σx for samples of size =n25. Round your answers to one decimal place if needed.μx= σx=
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.