Two candidates are running for president: john democrat and joe republican. a recent survey concluded that jon democrat had a probability of 0.41 to win the election. five hundred people are interviewed at random about whom they would vote for. a random variable x is defined as the number of people who said they would vote for john democrat. find the expected value of the random variable

sorry i dont know my friend

c

step-by-step explanation:

at least i think its

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;

answer: hence, function will be

explanation:

since we have given that

cost of a new textbook = $85

according to question, the resale value of a textbook decreases by 25% with each previous owner,

so, our function becomes,

here, y is the total value of the text book after x owners.

hence, function will be