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2 years ago

The probability of a student scoring 75% in class work is 0.64, and the probability of a student scoring 85% is 0.45.

Mathematics

2 answers:

Tresset [83]2 years ago

6 0

Answer: The probability of a student scoring 75%, given that they have already scored 85% in class work is 1.

Step-by-step explanation: Given,

$P(A)=0.64$

and

$P(B)=0.45$ .

Also,

If the student already scored 85%, the it is sure that he/she will definitely score 75%. Hence, the statement that the probability of a student scoring 75% in a class work, given that they already scored 85% is 1 is a true statement.

So, the second statement is true.

zhenek [66]2 years ago

6 0

So basically, if a student scored 85 %, it sure scored 75 % too

So the true statement based on the scenario is : Event A and B are not independent because P(A|B) ≠ P (A)

hope this helps

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