you close but
z = (x- mu)/sigma
z = (56-45)/5.3 = 2.08
z = 11/5.3 = 2.08
z = (x-mu)/sigma
z = (245-223)/12.4
z = 22/12.4 = 1.77
Find z, given the following. (Give your answer correct to two decimal places.)
x = 56, ì = 45 and ó = 5.3
z = 56-45/5.3=47.509=47.51
Find z, given the following. (Give your answer correct to two decimal places.)
x = 245, ì = 223 and ó = 12.4
245-223/12.4=227.02 x-mean/sd=???This is what I used and they are wrong can someone help me?
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