Given the list of probabilities, choose all of the correct statement. p(a) = 0.25 p(b) = 0.15 p(c) = 0.30 p(d) = 0.20 if the p(a and b) = 0.075, then events a and b are independent. if the p(a and c) = 0.15, then events a and c are independent. if the p(b and c) = 0.045, then events b and c are independent. if the p(c and d) = 0.06, then events c and d are independent.

Choose the last two statements as the correct ones

Step-by-step explanation:

In probabilities it is said that two events A and B are independent if the result of occurrence A does not affect the occurrence of B.

For this type of events it is established that:

If A and B are independent events, then:

P (A and B) = P (A) * P (B)

In this problem the probability of A, B, C and D occurs.

Then calculate P (A and B) as P (A) * P (B), if the result gives the same as in the statement of the problem, then it is true that A and B are independent, the same for the other combinations.

It is said that P (B and C) = 0.045

Then let's do:

P (B and C) = P (B) * P (C) = 0.15 * 0.30 = 0.045

It is fulfilled, then B and C are independent.

You can check that the same happens for P (C and D) = 0.06

P (C and D) = P (C) * P (D) = 0.30 * 0.20. = 0.06.

So the statement is correct, C and D are independent.

The first two statements are not fulfilled.

Finally choose the last two statements as the correct ones

y = - 6

step-by-step explanation:

given the point (- 2, y) lies on the graph then it is a solution of it's equation.

substitute x = - 2 into the equation for value of y

y = 3(- 2) = 3 × - 2 = - 6

the point on the graph is (- 2, 6)

207/8 is the right