Answer:
i think you forgot to attach the image lol
Step-by-step explanation:
Answer:
no, because the first=12-x
and the second=-1x+2
Step-by-step explanation:
The probability that the teacher selects both boys from a seventh grader and eighth grader.
first calculate the probility that it is boy in each grade
7th
x = 7 / ( 7 + 3) = 7 / 10
8th
y = 2 / (2 + 2) = 1 / 2
so the probability
P = ( 7 / 10 ) ( 1 / 2 )
P = 0.35
No a more reasonable answer would be close to 2.5
