The mean on a statewide geography test was 74 with a standard deviation of 12. West County sampled the scores of some of its students and reported a mean of 79 with a margin of error of ±1.9. To the nearest whole number, how many students were in West County’s sample?

Whose conclusion is correct? choose all that apply. (two max) elijah emily edward esme

Which number completes the inequality? 2/3 < _ < 7/9

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )