4 points Sav Show work. The sample average number of tweets by President Trump is 30 per month with a standard deviation of 10. Using the empirical rule, what percent of months have between 10 and 40 tweets? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). B I Y S Paragraph Arial 10pt E V A TX . .. X X2 83 STT - + ABC V V X EXE I+ O (?) Mean= 30 Standard Deviation 10 X= 10 x=40 x=10+40