The table below tabulates the number of T-shirts in a shop, classified according to their colours and sizes. For example, there are 10 blue T-shirts of Small size and so forth. Blue Red Total Answer: Small Medium Large 10 28 18 25 19 35 47 Answer: 19 37 a) If a T-shirt is selected at random, what is the probability that its colour is red? Give your answer to 2 decimal places in the answer box. X-large 9 12 21 Answer: Total 65 75 140 b) What is the probability that a T-shirt selected at random is blue given that its size is Medium? In the answer box, fill in your answer to 2 decimal places. c) What is the probability that a T-shirt selected at random is either blue in colour or is of Large size? In the answer box, provide your answer to 2 decimal places.

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
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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The table below tabulates the number of T-shirts in a shop, classified according to their colours and sizes. For example, there are 10 blue T-shirts of Small size and so forth.
Blue
Red
Total
Answer:
Small
10
25
35
Answer:
Medium
28
19
47
Large
18
19
37
a) If a T-shirt is selected at random, what is the probability that its colour is red? Give your answer to 2 decimal places in the answer box.
Answer:
X-large
9
12
21
Total
65
75
140
b) What is the probability that a T-shirt selected at random is blue given that its size is Medium? In the answer box, fill in your answer to 2 decimal places.
c) What is the probability that a T-shirt selected at random is either blue in colour or is of Large size? In the answer box, provide your answer to 2 decimal places.
Transcribed Image Text:The table below tabulates the number of T-shirts in a shop, classified according to their colours and sizes. For example, there are 10 blue T-shirts of Small size and so forth. Blue Red Total Answer: Small 10 25 35 Answer: Medium 28 19 47 Large 18 19 37 a) If a T-shirt is selected at random, what is the probability that its colour is red? Give your answer to 2 decimal places in the answer box. Answer: X-large 9 12 21 Total 65 75 140 b) What is the probability that a T-shirt selected at random is blue given that its size is Medium? In the answer box, fill in your answer to 2 decimal places. c) What is the probability that a T-shirt selected at random is either blue in colour or is of Large size? In the answer box, provide your answer to 2 decimal places.
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