dondre54
22.07.2021 •
Mathematics
Suppose a deck of cards contains 13 cards:
5 green cards numbered 1-5, 4 red cards numbered 1-4, and 4 blue cards numbered 1-4.
For 3.1-3.3, 5 draws are made without replacement. X is the number of green cards drawn and Y is the number of red cards drawn. Z is the sum of the numbers on the tickets.
G1 = first card is green
G2 = second card is green
Enter the probability as a fraction.
P(at least one green) = .
Solved
Show answers
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Ответ:
Step-by-step explanation:
Given
Solving (a):
This is calculated as:
Solving (b):
This is calculated as:
-- this is so because the selection is without replacement
Solving (c):
Using the complement rule, we have:
To calculate , we have:
--- Green
---- Not green
The probability that both selections are not green is:
So, we have:
Simplify
Recall that:
Take LCM
Ответ:
A-Triangle
B- Quadrilateral
C- Triangle
D- Quadrilateral
E- Quadrilateral
F-Triangle
G-Triangle
H-Quadrilateral
I- Triangle
J-Triangle
Step-by-step explanation:
If it has 3 sides it’s a triangle, if it has 4 it’s a quadrilateral.