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

Question

Quizplus · Accepted Answer

A run is a sequence of similar events, in this case, sequences of Ns or Ys, before the event changes. Counting the switches between N and Y in the sequence, there are 19 runs.

Suppose a Pair of Dice Is Rolled 50 Times to Determine