Answer:
Step-by-step explanation:

Answer:
Generally an unbiased statistic is preferred over a biased statistic. This is because there is a long run tendency of the biased statistic to under/over estimate the true value of the population parameter. Unbiasedness does not guarantee that an estimator will be close to the population parameter.
Step-by-step explanation:
ok but what's the question? u gave us info but what's the question
Answer:
X=-1,y=-2
Step-by-step explanation:
if y =2x
2x=4x+2
so X=-1 and y=-2
240, you just add a zero to 24, I don't know what you mean by zero the hero of 4 square, hope this helps!