The polyatomic ion with the formula HPO42- is called
2 answers:
Answer : The polyatomic ion with the formula is called hydrogen phsophate ions.
Explanation :
The rules for naming the ionic compounds with polyatomic ion is given as :
- The positive ion (cation) is written first.
- The negative ion (anion) is written next.
- The suffix is added at the end of the negative ion (anion). The suffix used is '-ate'.
In , hydrogen ion combine with phosphate ion to give hydrogen phosphate ion.
Hence, the polyatomic ion with the formula is called hydrogen phsophate ions.
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Answer:
Option D -0.67
Step-by-step explanation:
Given : Preference of Brand A =30% ⇒
Preference of Brand B =70% ⇒
Prefer Brand A and are Female = 20% ⇒
Prefer Brand B and are Female = 40% ⇒
To find : Selected consumer is female, given that the person prefers Brand A
Solution : Using Bayes' theorem, which state that
where, P(A) and P(B) are probabilities of observing A and B.
P(B/A)= is a conditional probability where event B occur and A is true
P(A/B)= also a conditional probability where event A occur and B is true.
Now, applying Bayes' theorem,
Therefore, Option D is correct probability that a randomly selected consumer is female, given that the person prefers Brand A -0.67
The ratio can be determined as,
Thus, the requried ratio is 7:12.