assuming  an  approximately  normal  data  set,  find  the  99.7%  confidence  interval  for  systolic  blood  pressure  in  women given  a  sample  size  of  1000  with  a  mean  of  123.4  and  a  standard  deviation  of  19.9.  1.73.65  –  173.15 3.103.5  –  143.3 2.63.7  –  183.1 4.83.6  –  163.2

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.