Reply To: How to maintain a counter/score based on values in radio boxes?

Oh, I should have made it clear. It's the JavaScript code, so you should put it in your theme main script file. Or better, create a JS file (assume its name is custom.js) in your theme folder, and put this content inside:

$( function() {
    // Snippet goes here.
    var total = 0;
    $( '.like input:checked' ).each( function() {
        total += $(this).val();
    } );
    // Output total somewhere
    $( '#selector' ).text( total );

    // More snippet goes here.
} );

And then in your functions.php file of the theme, add the following code:

add_action( 'wp_enqueue_scripts', function() {
    wp_enqueue_script( 'custom-handle', get_template_directory_uri() . '/custom.js', array( 'jquery' ), '', true );
} );

This thing is quite technical, though.