Answer:
0.00075
0.02425
0.94575
Step-by-step explanation:
Let E1 be the event that A dies within next 20 years and E2 be the event that B dies within next 20 years.
Probability that E1 occurs = P(E1) = 0.025
Probability that E2 occurs= P(E2)= 0.030
Since the two events does not depend on each other, E1 and E2 are independent events.
For two independents E1 and E2 , the probability that both E1 and E2 occurs simultaneously is P(E1 ∩ E2) is given by:
P(E1 ∩ E2) = P(E1)*P(E2)
Probability that both A and B dies in next 20 years = 
Probability that A will die and B will not die is given by=
P(E1 ∩ E2') = P(E1) - P(E1 ∩ E2) = 0.025 - 0.00075 = 0.02425.
Probability that neither A nor B dies is given by=
P(E1' ∩ E2') = 1 - [ P(E1 ∪ E2) ] = 1 - [ P(E1) + P(E2) - P(E1 ∩ E2) ]
= 1 - [0.025 + 0.030 - 0.00075] = 0.94575
Answer:
156 different pairs will be there.
Step-by-step explanation:
As the order is essential as we need different pairs therefore permutations will be used.
A permutation is any ordered subset of the objects r selected with regard to their order, from the set of n distinct objects. It is given by nPr where n> r
Total number is 13 and required number is 2
n= 13 and r= 2
13 P2= 156 possible combinations.
A combination is any subset of the objects r selected without regard to their order, from the set of n distinct objects. It is given by nCr where n> r
It is a speacial right triangle. It always has 30,60, or 90 degrees.
5(20) + 4y = 216
100 + 4y = 216
4y = 216 - 100
4y = 116
y = 116/4
y = 29.....so they sold 29 four-dollar yogurts + 20 five-dollar yogurts....for a total of 49 yogurts sold <==
Answer: 1 - C
2 - E
3 - no answer
4 - B
Step-by-step explanation:
A. 



So, A is not an answer for 1


So, A is not an answer for 2


So, A is not an answer for 3


So, A is not an answer for 4
B. 




So, B is not an answer for 1


So, B is not an answer for 2


So, B is not an answer for 3


So, B is an answer for 4
C. 




So, C is an answer for 1
We jump to
D. 




So, D is not an answer for 2


So, D is not an answer for 3
E. 




So, E is an answer for 2