A corporation produces packages of paper clips. The number of clips per packages varies

Number of clips Proportion of packages

47 0.04

48 0.13

49 0.21

50 0.29

51 0.20

52 0.10

53 0.03

Two packages are chosen at random. What is the probability that at least one of them contains at least 50 clips?

No idea. Thanks a lot.