Final answer:
True, an accumulator variable in conjunction with a loop is commonly used to calculate the sum of array values in programming.
Step-by-step explanation:
To calculate the total of the values in an array, a loop is often used with an accumulator variable. This statement is true. In programming, an accumulator variable is initialized before starting the loop and then used to hold the cumulative total of the elements in the array. Each iteration of the loop adds the current element's value to the accumulator. This process is akin to summing a list of numbers, where the order of addition does not affect the final total. This summing method is a fundamental concept in computer science and is widely applicable across various programming languages.