Answer:
Yes, It is an binomial experiment.
Step-by-step explanation:
Consider the provided information.
There are 4 conditions to identify that a distribution is binomial or not.
Now consider the provide procedure:
Binary condition is satisfied because baby can be male or not.
Trials are independent because couples were selected randomly. It satisfy the 2nd condition.
There are 70 couples it satisfy the 3rd condition.
Probability of success will be constant as couples selected randomly. It satisfy the 4th condition.
Yes, It is an binomial experiment because procedure satisfies all the criteria for a binomial distribution.
Hence, It is an binomial experiment.