You are required to write a Java program that calculates the standard
deviation, mean, and median of a given set of numbers. The program should take
input from the user for the array of numbers and display the calculated
statistics.

Your program should perform the following tasks:

i.       
Prompt the
user to enter the number of elements in the array.

4  Marks

ii.     
Accept the
user’s input for each element of the array.

5  Marks

iii.   
Asssign
the functions used to calculate mean, median and standard deviation to
variables mean,median and standarddeviation                                                                    

3  Marks

iv.   
Display
the mean,median and standarddeviation

3  Marks

v.     
Calculate
the mean (average) of the entered numbers.

4  Marks

vi.   
Calculate
the median (middle value) of the entered numbers.

5  Marks

vii.  Calculate the standard deviation of the
entered numbers.

6  Marks

Please follow these guidelines while writing your program:

Ø  Use appropriate data types and variables to
store the user input and calculated statistics.

Ø  Implement separate methods to calculate the
mean, median, and standard deviation.

Ø  Handle cases where the number of elements is
less than 2 for the standard deviation calculation, and provide a suitable
error message in such cases.

Ø  If the number of elements is even for
calculating the median, you should take the average of the two middle values.

Ø  Sub questions i-iv should be implemented in
the main function

Ensure that your program is user-friendly, and it provides meaningful
messages to guide the user through the input process. Also, consider adding
comments to explain the logic and purpose of each part of your code.

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