A ball was tossed up into the air. The height of the ball as a function of the time the ball is in the air in seconds can be modeled by a quadratic function. At the time the ball was initially thrown in the air, it was 7. 5 meters off the ground. After 1. 25 seconds, the ball was at its maximum height of 15. 3125 meters. What was the height of the ball 2 seconds after being thrown? Round your answer to the nearest tenth as needed. Meters.

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

What is the range of the data below? .8090100

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