don't need to show work. just need answers for 7,8,9,10

Question 7 (1 point) In the game show "Deal or No Deal", a contestant is down to 3 cases: $50, $1000, ' and $250 000. What is the expected value of the case? 0 $62 750 C) $251 050 Q $83 683.33 Question 8 (1 point) What is the value of "x" in the following binomial distribution: (1:) (0- Isles rn , ____.._,_ Question 9 (1 point) What is the value of "x" in the following geometric distribution: 10(3) 2 0.9651: [ he, ] 5/ ' Question 10 (1 point) What is the value of "x" in the following hypergeometric distribution:- ' ex?) , X = 13 = 3b P (18) l l av