A Gallop poll would like to ask the American public who they think they will vote for in this upcoming presidential election. What is the best way to survey the American public? A.)Visit a local grocery store ona Monday and ask everyone who they will vote for B.)Visit a neighborhood, like Kirkwood, and go door to door asking people who they will vote for C.)Pick every 10 entries in the phone book and call people to ask who they will vote forD.)Ask for volunteers to complete the survey about who they will vote for

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?

Aprisoner is trapped in a cell containing three doors. the first door leads to a tunnel that returns him to his cell after two days of travel. the second leads to a tunnel that returns him to his cell after three days of travel. the third door leads immediately to freedom. (a) assuming that the prisoner will always select doors 1, 2 and 3 with probabili- ties 0.5,0.3,0.2 (respectively), what is the expected number of days until he reaches freedom? (b) assuming that the prisoner is always equally likely to choose among those doors that he has not used, what is the expected number of days until he reaches freedom? (in this version, if the prisoner initially tries door 1, for example, then when he returns to the cell, he will now select only from doors 2 and 3.) (c) for parts (a) and (b), find the variance of the number of days until the prisoner reaches freedom. hint for part (b): define ni to be the number of additional days the prisoner spends after initially choosing door i and returning to his cell.