A scientist studying water quality measures the lead level in parts per billion (ppb) at each of 49 randomly chosen locations along a water line. Suppose that the lead levels across all the locations on this line are strongly skewed to the right with a mean of 17 and a standard deviation of 14 Assume that the measurements in the sample are independent. What is the probability that the mean lead level from the sample of 49 measurements x-bar is less than 15

Most animals give birth during a general time of year. this is because animals naturally breed so that their young will be born at the time of year when there will be adequate food supply. the bar graph shows the number of live births of a jackrabbit native to california over the course of year x. based on the data, which of the following would be an appropriate conclusion? a) in general, rabbits give birth during the spring months b) in general, rabbits give birth during the summer months c) in general, m california jackrabbits give birth during the spring months d) in general, california jackrabbits give birth during the summer months

For how answer my question this will be the last question can you answer in math subject

Identify the polynomial. a2b - cd3 a. monomial b. binomial c. trinomial d. four-term polynomial e. five-term polynomial