Answer:
(?)=70
Step-by-step explanation:
Answer:A)0.75
Step-by-step explanation:
Given
There are four options to a question
out of which one is correct with 4 points
one is wrong but carries 1 point
Other two are wrong with a negative Point
Probability of selecting an option is 
Expected score
Expected score=1+0.25-0.5
Expected score=0.75
Answer:
I believe it's the last one.
Step-by-step explanation:
12 is rounded to 10
22 is rounded to 20
20×10= 200