It’s biased because he is asking people who left a country concert and usually people who go to concerts go because it’s the type of music that they like, so the chances of someone saying they like a different kind of music probably won’t happen.
Answer:
Matrix A is not invertible.
Step-by-step explanation:
Invertible matrix are those matrix which are square matrix or non singular matrix.
For any matrix to be invertible, matrix should be non singular i.e. det(x) 0.
But for the question given above we cannot find determinant of matrix A as it is not square matrix. so inverse of given matrix does not exist. so it is not possible to have non trival solutions.
Answer:
(0,4)
Step-by-step explanation:
f(x)=4-5x
4-5(0)
5(0)=0
4-0=4
S greater than or equal to 10
Answer:
The mean is 20
Step-by-step explanation:
17+19+21+23=80
80 div 4 = 20