Can you please help me ASAP

Which is the best estimate of the product of 0.9 x 0.88? 0 0.25 0.5 1

Which answer choice is it? is it the first ,second,third or fourth giving 40 points for whoever answers correctly you

At the beginning of a call to the cable company, a message tells customers, "after you finish talking to our customer service representative, you will be asked to take a five-question survey about the level of service you recieved. it would be appreciated if you could stay on the line to answer the survey questions." what type of sampling is the cable company using?