Conditional probability urgent?

WE need to find the probability (

We know

P()=

First we find P(Boy)

From the table we can see that we have 12 boys out of (12+18=30) students

So P(Boy) =

Now we find the intersection of Junior and Boy

WE look at the Junior row and boys column that is 2

{P(Junior ∩ Boy) =

P()=

P()=

= =

P() =

definition: a circle is the  set of all points in a plane that are equidistant  from a given  point  called the center of the circle. we use the symbol ⊙ to represent a circle. the a line segment from the center of the circle to  any point  on the circle is a radius of the circle.

step-by-step explanation:

i googled it and this is what i got i don't know how it is. sorry.

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons