The mean and standard deviation of the sample data collected on continuous variable Y are −0.5 and 0.5, respectively. The following table shows the relative frequencies of the data in the given intervals.

Interval Relative Frequency
−2.0≤y<−1.5 0.25
−1.5≤y<−1.0 0.15
−1.0≤y<−0.5 0.10
−0.5≤y<0 0.10
0≤y<0.5 0.15
0.5≤y<1.0 0.25
Based on the table, is it appropriate to use the normal model to approximate the population distribution?