easy

  1. A

    STATISTICS EASY PROBLEM help

    how many ways can you arrange a 3 digit number if first number cant be 0 and no numbers can be repeated. My guess is 9*8*7 which equals 504. BUT PLEASE HELP :) thank you
  2. C

    Basic Stat

    Help. I got stuck in my stat reviewer, kindly help me. (Google can not help me as i do not understand its discussion) 1. A vaccine that is currently used to immunize people against a certain infection has an 80% success rate.That is, 80% of individuals who receive this vaccine will develop...