Walt and amy each have the same number of pennies. walt made equal stacks of 10 pennies with none left over. amy made equal stacks of 8 pennies with none left over. what is the least number of pennies that each person could have? explain how you found your answer.

What situation is an example of an observational study

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?