[R] R-help, please

[le4864 at mweb.co.za]

Good day,
My name is Kim Nguyen and please I need your help with: How to calculate the PASS rate of the data in the table below, with PASS in a single subject if value>=50 and PASS will be given if PASS 3 out of 4 subjectsWhich package will I need to use in this analysis




ID

Literacy

Maths

Physics

Chemistry


A

65

70

79

80


B

65

45

38

50


C

50

62

48

49


D

70

85

82

84


E

45

69

65

62

I appreciate your consultant very much
With kind regardsKim Nguyen
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