Five coins were simultaneously tossed 1000 times and at each toss the number of heads were observed. The number of tosses during which 0, 1, 2, 3, 4 and 5 heads were obtained are shown in the table below. Find the mean number of heads per toss. No. of heads per toss                    No. of tosses 0                                                   38 1                                                   144 2                                                   342 3                                                   287 4                                                   164 5                                                   25 Total                                             1000