2 answers:
A. True. about 10% because if you guess on every question you might not pass the test.
Number of questions = 18
Find each of the probability :
P(13 correct) = 18C13 (0.5)¹⁸ = 8568 / 262144
P(14 correct) = 18C14 (0.5)¹⁸ = 3060 / 262144
P(15 correct) = 18C15 (0.5)¹⁸ = 816 / 262144
P(16 correct) = 18C16 (0.5)¹⁸ = 153 / 262144
P(17 correct) = 18C17 (0.5)¹⁸ = 18 / 262144
P(18 correct) = 18C18 (0.5)¹⁸ = 1 / 262144
Find sum of the above probability :
Find P( ≥ 13 correct) = ( 8568 + 3060 + 816 + 153 + 18 + 1) / 262144
Find P( ≥ 13 correct) =12616/262144
Find P( ≥ 13 correct) = 1577/32768
Find P( ≥ 13 correct) = 0.048
Answer: 0.048
You might be interested in
Answer:
6. Multiplying 2 the highest number is 6.
Step-by-step explanation:
- Factor out 7 from the expression and remaining will be
<h3>Hence,Option C is correct..</h3>
Answer:
D
Step-by-step explanation:
surface area of cylinder
=(area of base)×2 + (area of curved surface)
× 2 + 
× 25
=2 × 
× 
+ 2 × × 10 × 25
Answer:
The correct answer is A
Step-by-step explanation:
No .2, 1, 5
it's a fraction so a/b isn't b/a unless a=b
