Leo found a metal bar that containment 284 grams of copper. after some tests, he determined that the bar was 80% copper. what was the total weight of the metal bar in grams?

What is the shape of the height and weight distribution

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.

The sum of the abscissa and the ordinate is six