Creating a random int generator with an even probability

In the code below, I want to ensure that there is an even chance of theImageRand being equal to theImage or theImage2, but I realized that between 1 and 100 more numbers are equal to 2 mod 1 than 2 mod 0. So theImage is being chosen a disproportionate amount of the time.

This was the simplest idea that came to me, but maybe there is a function that can do this easier? I was also thinking that I could find a number that fits what I'm looking for and put that into randi(n).

xRand = randi(100);
    if mod(xRand,2) == 1 
       theImageRand = theImage;
    elseif mod(xRand,2) == 0
       theImageRand = theImage2;
    end

Please let me know if I can explain more clearly. Thanks in advance.