Medal given to whoever helps
Luke has a spinner divided into ten equal segments, each with a different color. In forty spins, he spun yellow 2 times. How does this compare to the expected result?

The experiment resulted in 2 more yellows than expected.

The experiment resulted in 4 more yellows than expected.

The experiment resulted in 2 fewer yellows than expected.

The experiment resulted in 4 fewer yellows than expected.

Question

Medal given to whoever helps
Luke has a spinner divided into ten equal segments, each with a different color. In forty spins, he spun yellow 2 times. How does this compare to the expected result?

 The experiment resulted in 2 more yellows than expected.

 The experiment resulted in 4 more yellows than expected.

 The experiment resulted in 2 fewer yellows than expected.

 The experiment resulted in 4 fewer yellows than expected.

anonymous · Answer

how many would you expect in each segment?

anonymous · Answer

well, assuming each segment was equally likely, each should occur with probability $1/10$... out of $40$ spins we'd expect, then, $40\times1/10=4$ yellows. how does this compare to our experimental result of only $2$ yellows?