"different from expectation" is correct and is a usable phrase in written English.
You can use it when you want to state that something is not as expected or anticipated. Example: The results of the experiment were different from expectation, so we had to make adjustments to our methodology.
However, given that Ben scored higher than Mary on the task, the patterns observed are somewhat different from expectation that less skilled writers usually adopt a more linear approach to writing because they are predominantly occupied by text generation (Flower et al., 1986).
Thus the observed frequency of target site reassignment exceeds that expected under a length-proportional model based on these data, whereas the frequency of gain/loss may not be significantly different from expectation.
For hydrothermal vents on the Eastern Pacific, average taxonomic distinctness and variation in taxonomic distinctness of the recruit fauna were not significantly different from expectation, except for one study from Juan de Fuca Ridge and another from East Pacific Rise (Fig. 9).
Finding one coincidence among 17 mutations is not significantly different from expectation.
In principle the overlap could be significantly higher (i.e. AS preferentially targets protein-protein interfaces), lower (interfaces are "protected" from AS), or not significantly different from expectation.
However, if the distance and orientation were different from expectation after both relevant paired-end reads were aligned with the reference genome, the region might have variation structures.
Different from expectations, the final results of some of these studies were not in line with the predictions, and the reasons have not been fully investigated.
Moreover, finding 2 out of 24 gene locations in agreement with the Scmv1 and Scmv2 genome locations is not significantly different from expectations based on probability theory.
The average FIS value for all but 47 loci was not significantly different from expectations under Hardy-Weinberg equilibrium (P < 0.01).
All qualitative results were compared to theoretical expectations and in cases where results were different from expectations, additional simulations were run to determine the underlying causes of observed patterns.
The 477 remaining gaps have a random distribution across the chromosomes (the distribution of the distances between gaps is not significantly different from expectations, Chi 2 test, p = 0.43).
