100 times 9/5 +32 what is the answer
2 answers:
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Answer:
9.72% probability that among the next 7 theft cases reported in this district, exactly 3 of them resulted from the need to buy drugs.
Step-by-step explanation:
For each theft, there are only two possible outcomes. Either the need to buy drugs is the reason of the theft, or it is not. Each theft is independent of each other. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
In a certain city district the need for money to buy drugs is stated as the reason for 70% of all thefts.
This means that
Find the probability that among the next 7 theft cases reported in this district, exactly 3 of them resulted from the need to buy drugs.
This is P(X = 3) when n = 7. So
9.72% probability that among the next 7 theft cases reported in this district, exactly 3 of them resulted from the need to buy drugs.
Answer:
Therefore we need 475 milliliter of Compound A
and we need 760 milliliter of compound B.
Step-by-step explanation:
i) let x be the number of milliliters of compound A
ii) let y be the number of milliliters of compound B
iii) It is also given that x = y
iv) therefore x + y = 1235 milliliters
v) therefore y + y =
y = 1235
y = 760 milliliter
vi) therefore x = 1235 - 760 = 475 milliliter
Therefore we need 475 milliliter of Compound A
and we need 760 milliliter of compound B.