Check whether the sequence is arithmetic. If so, find the common difference d. 6, 7, 8, 9, 10 ...
Select the correct choice below and, if necessary, fill in the answer box within your choice.
A. The common difference is
(Simplify your answer.)
OB. The sequence is not arithmetic.

Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to state whether or not the given r represents a significant linear correlation. use a significance level of 0.05. r=0.105, n=15 a: critical values: r= +0.514, no significant linear correlations b: critical values: r= +0.514, significant linear correlation c: critical values: r= +0.532, no significant linear correlation d: critical values: r= 0.514, no significant linear correlation will mark brainliest !