Suppose two samples are taken. Sample 1 has a mean of 105 and a standard deviation of 15 and sample two has a mean of 100 and a standard deviation of 22. Assume the samples are taken on the same scale/variable.
Which of the following is a correct statement about these samples?

a. Sample 2 has more variability than sample 1.
b. Both samples are more or less the same.
c. Sample 1 has more variability than sample 2.
d. The mean of sample 2 is significantly higher than the mean of sample 1.