The number of people in a car that crosses a certain bridge is represented by the random variable X, which has a mean value μx = 2.0, and a variance σx2 = 1. The toll on the bridge is $5.00 per car plus $1.00 per person in the car. The mean and variance of the total amount of money that is collected from a car that crosses the bridge are:

Mean = 7Variance = 1

Mean = 11Variance = 1

Mean = 2Variance = 1

Mean = 2Variance = .5

Mean = 7Variance = 2

answer: the answer is one of

step-by-step explanation:   we are given to write a proper fraction where the whole is divided into an even number of equal parts less than ten, and an odd number of those parts exist.

an even number less than 10 may be one of 2, 4, 6 or 8. so, the whole may be one of these four evens.

now, an odd number of these parts must exist, so the numerator must be an odd number, one of 1, 3, 5 or 7. it cannot be 9 because then the fraction will become improper.

thus, our fraction may be one of the following

d

step-by-step explanation:

hi! i think the answer is 1/2 : )

the answer would be d

straight away you can eliminate a and c because not all books contain a scientific skill because some may be fiction. c is also wrong because it saids that the only way children can learn is through books which is incorrect.

b is also wrong because reading can be a scientific skill but not always, therefore it is wrong which leaves you with d, the correct answer since it said that it can children learn.

hope this ! : 3