Exercise 1: Define methods to do the following:

1. SumOfSquares for given range (take two parameter, prints result): =

2. isPrime for a given n (take one parameter, prints )

Test the two methods by asking the user to enter the number n, then pass the number

to the two methods and observe the results.

Exercise 2: Write a program that takes list of numbers from file and calculates the mean (average) and the standard deviation of the numbers. If the numbers are x1, x2, ... xn, then the n is the number of numbers in the file. Then the mean (M) = (x1 + x2 + ... + xn)/n , and the standard deviation is:

SD = (1)2+ (2)2 ++ ()2

solve question 1,2.

code in java program

writing algorithms to solve simple problems.