@@francisforeverrrrrr the whole group is 90 participants. Therefore, the denominator of the probability fraction must be 90. A participant is picked from the whole group. The question does not ask that "a participant is picked from a subset of this group, which are 10+ years old". I agree it is a bit tricky question 👍
@bereketgidey71673 ай бұрын
all the questions were kinda easy for me.
@sanfranciscobs3 ай бұрын
@@bereketgidey7167 Congrats, it means you are in the 99th percentile 😎