At a middle school science fair, all the science fair projects used mathematics, but only

30% of the projects display the mean or the median. 27% of all the science fair projects

display the mean and 16% of all the science fair projects display the median.

1. Apply the addition rule,
   

P(mean or median) = P(mean) + P(median) P(mean and median)

to find the probability that a randomly selected project at this science fair displays

the mean and the median. Be sure to show your work and write 2-3 sentences

explaining how you found your answer

1. Tommy made the Venn diagram below of this situation
   

Pls help ASAP !!!