Eva conducted a survey to find out the amount of time high schoolers spend surfing the internet. from the data collected, the range of time spent was 3 hours. what does this range say about the data?

In statistics, the range is the difference of the maximum and the minimum value in your data set. Its significance is to give a quantifiable description of how widely spread your data points are. So, if the range is 3 hours, that means that the data points could vary from 0 to 3 hours. There is a limitation in using range to tell the spread, however. If the data set have outliers, the range might be inaccurate. Outliers are data points that are obviously different from the rest of the group. Hence, you can only use range when the data points are very close to each other.

Intersecting secant-tangent theorem states that if a tangent segment and a secant segment are drawn to a circle from an exterior point, then the square of the measure of the tangent segment is equal to the product of the measures of the secant segment and its external secant segment.so to break it down: 1. pq acts as the tangent and ps as the secant with an intersection at p.sr = 21rp = 3x + 3pq = 4x + 4following to equation: tangent squared = the two segments multiplied by each otherso (4x + 4) ^ 2 = (3x + 3) • (21) simplifies to 16x^2 - 31x - 47 = 0 or (16x - 47)(x + 1) x = -1 or x = 47/162. pq acts as the tangent and ps as the secant with an intersection at p (again! )sr = 16rp = xpq = 15(15) ^ 2 = 16 • x225 = 16xx = 225/163. the interesting chords are proportional to each other so a ratio is possible to set up: ap dp 10 3 + x = = —— = pc pb 8 xcross multiple to get 10x = (3 + x)(8)x = 12