Carry your intermediate competations at least four decimal places were on your answer to 2 decimal places

Given that Z follows the standard normal distribution, and that the left-tailed probability for a z-score c is:
[tex]P(Z\leqslant c)=0.8531[/tex]Then, we can see that the value of c, round to two decimal places, is:
[tex]c=1.05[/tex]