What is the standardized z-score of 70 when the mean is 65.6 and the standard deviation is 3.8

Question

after, write the interpretation of the z-score

Answer 1

(70- 65.6)/3.8 = about 1.158 = the z score

= a little over 1 standard deviation above the mean

a score within 1 standard deviation of the mean is about 68% likely

given the empirical rule 68 - 95 - 99,7

or use a z table or an online z calculator to get a more precise probability