Write a class called StatisticsCalculator that calculates the mean (average) and

Question

Write a class called StatisticsCalculator that calculates the mean (average) and standard deviation for a set of integer values entered by the user.
Assume all input values will be valid integers (you don't have to test for validity). Your program should:

prompt the user for the number of values, n. (n must be 2 or greater!, assume it will be)
create an array to store the values.
prompt the user for each value and store it in the array.
calculate and output the mean of the values (x?).
calculate and output the standard deviation of the values using the Sample Standard Deviation formula below:

https://statistics.laerd.com/statistical-guides/measures-of-spread-standard-deviation.php


Here is a sample execution of the program:

csc% java StatisticsCalculator
How many values?: 4
Enter value 1: 4
Enter value 2: 5
Enter value 3: 8
Enter value 4: 9
Mean: 6.50
Standard Deviation: 2.38

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Explanation / Answer

import java.io.*; import java.lang.*; class StatisticsCalculator throws Exception { BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); int i=0,size=0; float sum=0,mean=0,std_deviation=0; System.out.println("Enter number of values:"); i=Integer.parseInt(br.readLine()); int array[]=new int[i]; while(i>0) { System.out.println("Enter"+i+"value"); array[size++]=Integer.parseInt(br.readLine()); i--; } for(i=0;i

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