14129 Marks ***
Hamid has 20 T-shirts.
The information shows the colours of his T-shirts.
7 black
4 dark blue
4 red
1 light blue
2 white
2 grey
Hamid is going to take one of his T-shirts at random.
a) What is the probability that the T-shirt will be grey?
b) What is the probability that the T-shirt will not be red?
c) He takes one of his blue T-shirts at random.
What is the probability that the T-shirt is light blue?

1. The probability that the T-shirt will be grey :-

=》

=》

=》

hence, the probability of grey t-shirt is 0.1

2. The probability that the T-shirt will not be red :-

=》

=》

=》

=》

The probability that the T-shirt will not be red is

0.8

3. He takes one of his blue T-shirts at random.

What is the probability that the T-shirt is light blue

total blue t-shirts = 5

so, the probability of choosing light blue t-shirt is

=》

=》

=》

hence, the probability of choosing light blue t-shirt is 0.2

rectangle: 9 1/8 x 4 1/9 = 37 37/72in

parallelogram: b times h= 10.3 x 6.2 = 63.86

trapezoid: a+b/2 times h= 42.5

volume of prism: l times w times h= 36

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step-by-step explanation:

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