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Q2 [20 Marks]: Design a web service that provides client applications with the following functionalities: 1. Finding the average of four values. 2. Check whether a specific value is a prime value or not. 3. Echo the repetition of a specific character with separation; for example: echo ("$", 4, ":") will return $:$:$:$ 4. Generate the histogram of a specific integer positive value using a selected character; for example: histogram (12, "#") will return (12: ############) Save the file(s) of your answer and upload it on the page of course at Moodle, kel. Design a Webpage that includes a table. The table should be di