In a survey 80 out of 100 people supported building a new library. if 450 people were asked if they supported building the library, how many would you expect to say yes ?

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

In the rectangle below ac=30 units what is de

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?