Sophia Foundations of Statistics Unit 1 Milestone Study guides, Class notes & Summaries

Two drains in Bill's house were clogged. After considering the selection of drain cleaners at the hardware store, Bill chose a brand that claimed to be effective with just one use. Back at home, Bill eventually had to use the cleaner three times before the drains cleared, but he was still satisfied with the product. Which of the following correctly describes the sample? The number of drains the product's manufacturer tested The products Bill chose 4/21/2020 Sophia :: Welcome All of the...

received eight different quotes: $27,345 $26,780 $27,345 $29,785 $26,450 $29,480 $26,700 $26,995 What is the average car price? $27,607 $28,415 $27,610 $27,345 RATIONALE The average, or mean, is found by adding all the values and dividing by the number of data points, in this case, eight different quotes. ($27,345 + $26,780 + $27,345 + $29,785 + $26,450 + $29,480 + $26,700 + $26,995) / 8 = $220,880 / 8 = $27,610. CONCEPT Calculating the

16 questions were answered correctly. 4 questions were answered incorrectly. 1 Sarah wanted to review what others thought of a new video game she was interested in before she purchased it. She noticed that on the website from a large online retailer, the game received an overall rating of 4.5 stars. Which of the following is an example of selection bias?  Sarah reviews several different star ratings to get a sense of what all users thought about the game.  Sarah only reads the 5...