The amount 5th grade students grow during the school year is normally distributed with a mean of 4 inches and a standard deviation of 1 inch as shown below. Out of 1,000 5th graders, how many grow between 3 inches and 7 inches? 817 668 803 839​

Which ratio is equivalent to 10: 85

When eating out, record the total cost of your meal (before tip) and the tip that you left. determine the percent of the cost of the meal that you left as a tip.

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.