Answer:
Opposite sign
Step-by-step explanation:
You can find this because when a point is reflected across the x-axis, its y-coordinate changes its sign. The same is true when reflected across the y-axis. It's x coordinate changes its sign.
Answer:
she saved $5.25
Step-by-step explanation:
Answer: $3.7
Step-by-step explanation:
23-20=3
3/2=1.5
20-1.5=18.5
18.5/5=3.7
Answer:
A statistic is said to be unbiased if the mean of its sampling distribution is equal to the true value of the parameter being estimated.
Step-by-step explanation:
A parameter is a number that describes the population.
A statistic is a number that describes a sample.
A statistic used to estimate a parameter is unbiased if the mean of its sampling distribution is exactly equal to the true value of the parameter being estimated. For example, the mean of a sample is an unbiased estimate of the mean of the population from which the sample was drawn.
A statistic is biased if its expected value is not equal to the parameter.
Answer:
8439
Step-by-step explanation:
7332
