It is reasonable to model the number of winter storms in a season as with a poisson random variable. suppose that in a good year the average number of storms is 4, and that in a bad year the average is 6. if the probability that next year will be a good year is 0.4 and the probability that it will be bad is 0.6, find the expected value and variance in the number of storms that will occur.

add them

step-by-step explanation:

idk you did not give the options or numbers so you cant solve it

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

time is equal to distance over rate so

t = d/r

need a little bit more information for the second question.