How to write binary data to a file?

Write a program that reads a set of numbers from a data file (stabdard.dat) and count them? ?

• Write a program that reads a set of numbers from a data file (standard.dat) and count them. Extensions: ·Write and call three value-returning functions to calculate the mean, variance, and standard deviation of the set of numbers. The standard deviation is the square root of the variance. ·Using notepad create a set of numbers to input and store them in a data file named standard.dat in your Data folder. ·Output the number of numbers in the file, the mean, variance and standard deviation in the main program.

• Answer:

  Please put some code together that is an attempt to perform this operation. Then come back and ask for help as to where there are problems. Or at least attempt to show the work you did, and then ask us to fix it. You will learn an immense amount more than you would if someone else did it for you. Hint: include <iostream> and use the "ifstream" functions: open(), getline(), eof(), close() http://www.cplusplus.com/reference/iostream/ifstream/ Secondary hint: Here's some C code to generate a random number of integers into a data file instead of you having to type them in: #include <stdio.h> #include <stdlib.h> #include <time.h> int main(int argc, char *argv[]) {    srand(time(NULL));    FILE *fptr = fopen("mynumfile.txt", "w");    if (fptr != NULL)    {       char buf[20];       printf("How many random entries to you want to generate? ");       fgets(buf, sizeof(buf)/sizeof(*buf), stdin);       for (int n = 0; n < atol(buf); n++)          fprintf(fptr, "%d\n", rand());       fclose(fptr);    }    return 0; }