(07.06 LC)
2 answers:
Answer:
The correct option is 4. The given equation has infinitely many solutions.
Step-by-step explanation:
The given equation is
This equation can be written as
Subtract 4.5z from both the sides.
This statement is free from z and LHS=RHS, it means the this statement is true for any value of z.
Therefore the given equation has infinitely many solutions and the correct option is 4.
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Answer:
The total number of samples that give this outcome is 5.
Step-by-step explanation:
Since Y takes values in {0,1,2,3}, For us to have that implies that all of them are zero but one. The one that is non-zero necessarily is equal to 1. To calculate the number of samples that give this outcome is equivalent to counting the total number of ways in which we can pick the i-index such that
. Note that in this case we can either choose Y1 to be 1, Y2 to be 1 and so on. So, the total number of samples that give this outcome is 5.