please help complete this C program

11 [2]7 n a 1 o=-(x) ns a~g i%3D1 a 1: #include 2: 3: void AvgVar (int *d, int n double *average, double *variance); 4: 5: int main(void) 6:1 7: int data[7] = [2, 108, 16.79,27.38,64]; 8: double avg. var: 9: 10: // AvgVar 11: 12: printf("*1 = b ", avg): 13: printf(" b|n" var) 14: 15: return 0: 16:] 17: 18: void AvgVar (int *d. int n, double #average. double *variance) 19:1 20: intk, sum%3D30: 21: double diff. var sum = 0.0: 22: 23: 1/ 24: for(k = 0; k Kn:k++){ 25: sum 26: 27: d 28: 29: // 30: for (k = 0: kon: k++) { 31: // 321 diff = e 33: //diff 34: var sum= 35: 36: 37:] C