Which expressions are equivalent when m = 1 and m = 4? 5 m minus 3 and 2 m + 5 + m 3 m + 4 and m + 4 + 2 m 2 m + 7 and 3 m minus 3 + m 5 m + 3 and 4 m + 2 + 2 m

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.

D. in a discrete probability distribution, the sum of the probabilities for the discrete variables will be > 1. true or false

Agroup of student volunteers participates in a study designed to assess several behavioral interventions for improving output in a repetitive task. prior to the beginning of the study, all volunteers unknowingly observed, and their output is measured. at the beginning of the study, prior to any intervention, the volunteers perform the same task under the observation of a study administrator, and their overall output increases. which of the following terms describes this phenomenon? a. simpson's paradox b. hawthorne effect are d. novelty effect d. pygmalion effect e. observer-expectancy effect