P(≥10) = 6/16 = 3/8
Step-by-step explanation:
For your problem, n(S) = 4×4 = 16. That is, the two spinners can give 16 possible combinations of numbers. n(A) = the number of those combinations that add up to 10 or more. Those would be:
2+8
3+7
3+8
4+6
4+7
4+8
So n(S) = 6