Jennifer spun a spinner with 5 equal parts labeled 1 - 5. What is the probability that she will NOT spin a 4?

25%

20%

80%

50%

Based on the information given, since there are 5 equal parts on the spinner and she wants to avoid spinning a 4, there are 4 possible outcomes out of a total of 5.

Therefore, the probability of not spinning a 4 is 4/5 or 80%.

So the correct answer is 80%.