This question deals with statistics and the common probability distributions. I badly need your help.

2. Suppose it has been observed that an average of 6 vehicles passes by their house per minute on Wednesday mornings. One Wednesday morning. zla counted the number of passing vehicles. if at most 3 vehicles pass by their house in a minute. she will give her mother a new watch. Otherwise. she will give her a necklace. What is the probability that she will choose the latter? {5 points)