Agroup of 10 students participate in chess club, karate club, or neither. let event a = the student is in chess club. let event b = the student is in karate club. one of these students is randomly selected. what is p(a|b)? a. 2/6 ≈ 0.33 b. 4/6 ≈ 0.67 c. 6/10 ≈ 0.60 d. 2/10 ≈ 0.20 if you can, explain how you got your answer. i would like to know how you solved it.

Total number of students = 10

As we have to find

P(A/B) = Probability( A when B has happend)

P(A/B)= P(A intersection B)/P(B)

According to given figure only yolanda and Rob are in both club

Therefore,P(A intersection B)

Number of student in karate club =6

P(B)

P(A/B)

Converting division into multiplication by reciprocating the term after division

P(A/B)

On solving we get ,

P(A/B)

P(A/B)

P(A/B)

d

step-by-step explanation:

hello and welcome!

so, when we see the words "proportional" along with a table, we need to know that we're looking numbers that divide by the same thing.

looking at this table, we simply have to do a trial and error, and divide to see which numbers have the same quotient. if you look at choice a & c, they both have equal quotients for three of the numbers, with one exception, so those can't be the answer. looking at b, there is no similarity, so that can't be it. then, we see d; if you divide all the numbers in the table, you'll see that they all divide by two, which is a proportional relationship, and our answer!

also, always remember that the x will always be the number that goes into y, and somewhere behind this table, is a formula. for this specific table, the formula would be:

since our x-value is being divided by two to get the y-value. and if they were to ask for more numbers in the series, this is the formula you would use to find them.

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.