Suppose that the handedness of the last fifteen u. s. presidents is as follows: 40% were left-handed (l)47% were democrats (d)if a president is left-handed, there is a 13% chance that the president is a democrat. based on this information on the last fifteen u. s. presidents, is "being left-handed" independent of "being a democrat"? (a) yes, since 0.40 * 0.47 is not equal to 0.13.(b) no, since 0.40 is not equal to 0.13.(c) no, since 0.47 is not equal to 0.13.(d) yes, since 0.47 is not equal to 0.13.

Option 'c' is correct.

Step-by-step explanation:

Since we have given that

Probability that they were left handed P(L)= 40%

Probability that they were Democrats P(D)= 47%

So, P(L∩D) = 135 = 0.13

Now, to check whether they are independent or not.

We will find P(L) × P(D) is given by

Since P(L) . P(D) ≠ P(L∩D)

So, they are not independent.

Hence, Option 'c' is correct.

b

step-by-step explanation:

given

- 2 (3x + 12y - 5 - 17x - 16y + 4 )

simplify the parenthesis by collecting like terms

= - 2 (- 14x - 4y - 1) ← distribute the parenthesis by - 2

= 28x + 8y + 2 → b

the two may have that, even a breakdown is probably offered