Homework Progress 34 / 66 Marks
67%
In a school of 450 students, 110 of them are in the choir,
240 of them are in the band and 60 students are in the choir and the band.
Find the probability that a student chosen at random is in the choir
or the band or both.
You may wish to complete the Venn diagram to help you.
E
Choir
Band
Probability
+

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

i think its a and d

step-by-step explanation:

well we know there are 4 clubs in 52 cards so it’s replaced so it should be 3/51

step-by-step explanation:

answer: x=3 and y=4

step-by-step explanation: