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
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
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...
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Transcribed Image Text: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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