Exams › SSC CGL (Prelims) › General
From a sample of 250 data scientists, determine the ratio of those proficient in Python to those proficient in R. Category | Number of Data Scientists ---|--- Proficient in Python and R | 50 Proficient in Python only | 80 Proficient in R only | 70 Proficient in neither language | 50 Total sample size | 250
- 13:12
- 12:13
- 8:7
- 7:8
Correct answer: 13:12
Solution
Python-proficient students = Python only + both = 80 + 50 = 130. R-proficient students = R only + both = 70 + 50 = 120. Therefore, the ratio of Python to R is 130:120 = 13:12.
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