Question

sub questions within question: in comments

Answer 1

i need guided help through these

Answer 2

@phi can you help me on #1

Answer 3

the probabilities of all possible outcomes must add up to 1
in other words, it is 100% certain that something on the entire list occurs.

I would add up the probabilities in your table , then do 1 - sum to get what is left for the blank entry.

Answer 4

while im doing it, can you tell me how to do the rest? becaus ei might have to leave in a second. Thank you

Answer 5

For Q2, they seem to be leaving out some info. We would have to know how many of each type of house is being sold. Maybe they mean an equal number of both types are sold ??
if so, you can average their means to get the mean of both types.

Answer 6

ok for the #1 i got .33 is this correct?

Answer 7

@phi its #1 is .33

Answer 8

Did you add up the probabilities of everything except Caesar Salad ?

Answer 9

well you said that was 1

Answer 10

it's 1 including Caesar's Salad (which is blank)
what do all the others add up to ?

Answer 11

the others add up to 0.83

Answer 12

yes, and if we add in Caesar's Salad we must get 1
0.83+x= 1
what is x? i.e. what is the probability of Caesar's Salad.

this is a simple equation, and you "solve for x" by adding -0.83 to both sides

Answer 13

ok i got 0.17

Answer 14

yes