Answer:
x=11/2
Step-by-step explanation:
The value of D should be 4
Answer:
C
Step-by-step explanation:
Answer: 
Step-by-step explanation:
Given: The total number of ways of to choose 3 contestants out of 7 (including me and my friend)=35..................> Total outcomes.
Favorable outcomes = 2
Then the probability that me and my friend are both chosen =
Thus , the probability that me and my friend are both chosen =