To estimate the mean score of those who took the medical college admission test on your campus, you will obtain the scores of an srs of students. from published information you know that the scores are approximately normal with standard deviation about 6.6 . you want your sample mean x¯ to estimate with an error of no more than 0.9 point in either direction. (a) what standard deviation must x¯ have so that 99.7% of all samples give an x¯ within 0.9 point of ? use the 68–95–99.7 rule. (enter your answer rounded to four decimal places.)

i think it is c, not positive though

step-by-step explanation:

answer: entity is prob the answer

step-by-step explanation:

there is only one way to arrange all the eight relative to each other because they are not distinct. we have

now there are nine places to place an (and not more than one in one place).   because we have four symbols, we need to choose four of these nine places to insert an . order does not matter because the are not distinct.

thus there are 1 · c(9,4) ways, or, if we calculate it,

thus there are 126 ways to form such "words."

answer by jkismyhusbandbae:

a) how close a measured value is to the actual (true) value.

  measure of length.   there are 12 inches in a foot, and 36 inches in a yard.   one inch is exactly 2.54 centimeters.

accuracy is how close something is to an actual answer but it is not exactly correct.