: En unas oposiciones, el temario consta de 90 temas. Se eligen tres temas al azar de entre los 90. Si un opositor sabe 30 de los 90 temas, ¿cuál es la probabilidad de que sepa al menos uno de los tres temas?

c

step-by-step explanation:

it isn't d, because the interquartile range is from 27-57. and the interquartile range is basically half the data, it's pretty obvious.

it isn't b, because like i said earlier, the interquartile range is from 27-57. 57-27 is 30. the real range has to be longer

not a either. although it looks like it, 3/4 of the data is not greater than 27. but if c is wrong than this should be correct

the correct answer is c, because 13 is the point in which the plot starts