The first one is 40:5 becasue when you divide 40 by 8, you get 5.
The second one would probably be 42:8.4 becuase when you divide 42 by 5, you get 8.4
I'm not so sure about the secod one but i am positive about the first one.
Hope this helps!! :D
1. (-3.5, -2)
2. (3.5, 2)
3. (3.5, -2)
4. (-3.5, 2)
4 is the answer
Answer:
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Step-by-step explanation:
Answer:
a. The probability is not equal to 1
b. P (A') = 0.70
c. P ( A U B ) = 0.80
d. P ( A' ∩ B' ) = 0.20
Step-by-step explanation:
a. Because these A and B are disjoint
b. since the probability of A is 0.30 then the probability of A compliment is
P(A compliment ) = 1 - P (A)
P(A compliment ) = 1-0.30
P(A compliment ) = 0.70
c. Since event are disjoint then intersection of A and B is 0, so probability of A U B is;
P ( A U B ) = P (A) + P(B) - P(A∩ B)
P ( A U B ) = 0.30 + 0.50 - 0
P ( A U B ) = 0.80
d. The inetrsection of compilments of A and B are:
by using De Morgan's Law we have,
P ( A' ∩ B' ) = P [(A U B )']
P ( A' ∩ B' ) = 1 - P ( A U B )
P ( A' ∩ B' ) = 1 - 0.80
P ( A' ∩ B' ) = 0.20
No of outcomes =16
favourable outcome=4
<span>probability of getting exactly 3 heads=0.25</span>
