7. a number of minor automobile accidents occur at various high-risk intersections in teton county despite traffic lights. the traffic department claims that a modification in the type of light will reduce these accidents. the county commissioners have agreed to a proposed experiment. eight intersections were chosen at random, and the lights at those intersections were modified. at the .01 significance level, is it reasonable to conclude that the modification reduced the number of traffic accidents?

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

answer: 8

step-by-step explanation: if you add the possibilities 5 different flavor and 3 different sizes 5+3=8