A random sample of 80 employees at a large grocery store with multiple locations was asked if they spend more than 30 minutes commuting to work. Assuming the true proportion of employees that spend more than 30 minutes commuting to work 35%, which of the following is closest to the probability that fewer than 30% of the employees in the sample would respond that they spend more than 30 minutes commuting to work each day?

An electronics manufacturer wants to know if customers would be interested in a detachable keyboard for their tables and if so, what the most important features would be. the manufacturer partners with an electronics store to include copies of the survey with every purchase at that store for one week. which of the following best explains why this random sample is unlikely to be a good representative sample of tablet owners' preferences for a detachable keyboard? a) one week is likely not enough time to get a large enough sample. b) most people won't bother to send in the survey, which is likely to skew the results c) there is no way to verify whether the responders to the survey actually own a tablet d) the survey is biased because it was conducted through an electronics store, not the general population

Which value is not a solution of 8x^3 – 1 = 0

3382-299=3383- ? fill in the blank?