Make Predictions about a population. Survey – method for collecting information Population – group being studied Sample – Randomly selected part of a.

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Presentation transcript:

Make Predictions about a population

Survey – method for collecting information Population – group being studied Sample – Randomly selected part of a population Already in notes - vocabulary

EX1)What is the probability that a student’s favorite sport is softball? Probability = part/whole = EX2) Based on a school size of 360 students, how many students should you expect to have softball as their favorite sport? 2 11 X 360 = 65

EX3) The table represents the results of desserts ordered in a local restaurant in one week. Based on the results how many people should you expect to order banana pudding in a month with 620 customers? DessertOrders taken Apple pie15 Ice cream24 Banana Pudding12 Chocolate Cake32 No dessert ordered ≈ 9% 620 X 9% ≈ 56