A sales table is piled with a jumble of sweaters. The sweaters are wool, cotton, or cotton-wool, and their sizes are small, medium, or large. For a random selection the probability of each kind of sweater (material and size) being selected is given in the following table. Small Medium Large Wool 0.04 0.10 0.08 Cotton 0.13 0.15 0.09 Cotton-wool 0.11 0.16 0.14 A sweater is selected at random. Find the probability that it is the following. (See Example 7.) (a) wool (b) medium (c) wool or cotton-wool (d) small or medium cotton

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Statements and Logic

Logic is the analysis of general patterns of thoughts without regard to any specific sense of context.