4. A survey of 320 families with 5 children each revealed the following distribution: No. of boys XXXXXXXXXXNo. of girls XXXXXXXXXXNo. of families XXXXXXXXXXIs the result consistent with hypothesis...

4. A survey of 320 families with 5 children each revealed the following distribution:
No. of boys 5 4 3 2 1 0 No. of girls 0 1 2 4 5 No. of families 14 56 110 88 40 12
Is the result consistent with hypothesis the male and female birth are equally probable?
5. Distinguish between the following: (i) Bibliography and Footnote (ii) Oral Reporting and Written Reporting