Answer:
The events "Spike passes chemistry" and "Spike passes mathematics" are not independent.
The probability that he fails both subjects = 0.37
Step-by-step explanation:
The probability of Spike passing Chemistry = P(Chemistry) = 0.35
The probability of Spike passing Mathematics = P(Mathematics) = 0.40
The probability of Spike passing both Chemistry and Mathematics = P(Chemistry,Mathematics) = 0.12
For the events "Spike passes chemistry" and "Spike passes mathematics" to be independent, P(Chemistry,Mathematics) should be equal to P(Chemistry) * P(Mathematics)
But P(Chemistry) * P(Mathematics)=0.35*0.40 =0.14
So the two events are not independent.
The Probability that he passes Chemistry or Mathematics is given by P(Chemistry) + P(Mathematics) - P(Chemistry,Mathematics)
= 0.35+0.40-0.12=0.63
So the probability that he fails both subjects is the complement of this, namely (1 - 0.63) = 0.37
Answer:
10
Step-by-step explanation:
(1, 2) (1, 3) (1, 4) (1, 5) (2, 3) (2,4) (2,5) (3, 4) (3, 5) (4,5)
So here is how we calculate this. 7 and 1/4, when converted to percent, it would be 7.25. So in order for us to know that 7 and 1/4 tax on $1,540, we just have to multiply 7.25 by 1,540. So here is the answer. 11,165. Hope this answers your question. Have a great day!
Answer:
4 weeks
Step-by-step explanation:
9:3=3:1
5 days of the week x 3 = 15
then 15x4 weeks =60 assignments