when Jon opened a packet containing 30 biscuits, he found that 3 biscuits were broken. What percentage of the biscuits were broken?

What is the average rate of change for this function for the interval from x=2 to x=4 ?

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

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