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SAT Math Videos 353 videos
In 2014, the unemployment rate of one county in California was 7%. In another county, the unemployment rate was 11%. Which of the following express...
Angela is making cookies for a bake sale. She expects each batch of her cookies to sell for $40. It costs her $10 to make one batch of cookies, and...
Liz leaves her home to drive on a straight highway that leads directly across town for a job interview. At 8:00 a.m., she has driven 5 miles from h...
SAT Math: Working Backwards from a Percentage to Find a Sample Set 0 Views
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Statisticians believe that out of a 20,000 person population in a given town, 8000 people have a college degree. This prediction is based on a survey of 150 people. How many people in that sample had a college degree?
Statisticians believe that out of a 20,000 person population in a given town, 8000 people have a college degree. This prediction is based on a survey of 150 people. How many people in that sample had a college degree?
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