Necie wants to insert a photo of her dog on her blog. The current size of the photo is 480 pixels by 640 pixels.
1. Suppose she wants to reduce the photo to 120 pixels by 160 pixels.
Compare and contrast the original photo and the reduction.
2. What is the scale factor from the original to the reduction?

Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. the design of the study justifies the assumption that the sample can be treated as a simple random sample. use the data to construct a 99% confidence interval estimate of μ, the mean duration of game play. 4028 4316 4816 4650 4036 5010 4833 4331 4307