If 7x+3=24, that means x would be 3 so if you take 5-4x then that would be -7.
Answer: 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.
26% = 26%/100%
26/100, 13/50
answer is 13/50
I believe it's the last one, but it's a matrix not a vector as the question asks