Ascatter plot has a trend line of y=−2x+5. if a point in the scatter plot has an x-coordinate of 1, what is the best estimate of its y-coordinate?
a. −2
b. 1
c. 3
d. 5

Let the mean of the population be 38 instances of from 6" - 9" hatchings per nest, and let the standard deviation of the mean be 3. what sample mean would have a confidence level of 95% or a 2.5% margin of error?

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have