Suppose a Pair of Dice Is Rolled 50 Times to Determine

Multiple Choice

Suppose a pair of dice is rolled 50 times to determine if "doubles" occur randomly.The following results were obtained (N = not a double, Y = double) : N N Y N Y Y N N N N N N Y N Y N N N N N N Y N N N N N N Y N Y N N Y N N N N N Y N N N N N N N N N N
How many runs are there in these data?

A) 10
B) 17
C) 19
D) 40