1-If the values of X are 1, 6, 7, 5, 4, what is the value for E(X-2+4)? 2-From the information given in above what is the value of (EX)/N ? 3-use the following sample scores: 5, 1, 7,4, 8, 4, 13. The mode for this distribution is. 4-use the following sample scores: 5, 1, 7, 4, 8, 4, 13. The range is: 5-use the following sample scores: 5, 1,7,4, 8, 4, 13. The standard deviation is