What is the measure of А
50"
50°
B
C
[Not drawn to scale]
50°
80
100
130

Which matrix multiplication is possible?

What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top

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?