It's quite difficult, almost impossible to write all steps to solve a 3x3 matrix.
However, I will give you te answer that is determinant (Matrix)=54
Not sure but probably it’s b or c
Answer:
the asnwer is 35°
Step-by-step explanation:
you can said bca and its gonna give you that
Answer:
The probability distribution for x:"number of children per family for this income group" is:

Step-by-step explanation:
With the information given we have the relative frequencies of each category.
We know:
