LO: TBAT find measure of location 26/09/16

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Presentation transcript:

LO: TBAT find measure of location 26/09/16 Title: Averages in grouped data Q1. The heights of a number of trees were recorded. Find the Mean, Mode & Median height of trees. Heights 5 10 15 20 Number of trees 26 17 11 6 Literacy in MATHS Estimated Mean Linear Interpolation Method Class limits/Class Boundaries

Q2 The heights of a number of trees were recorded. a)Find the estimated Mean height of trees. b) Find the modal class of height of trees. c) Find the median from the table below. Heights 0-5 6-10 11-15 16-20 Number of trees 26 17 11 6

Interpolation is a means of determining the value of an unknown data point based on the values of known surrounding data points