You can use the FOIL method when you have two binomials.
First, outer, inner, last
Answer:
4.178×10 to the second power
Step-by-step explanation:
Move the decimal twice to the Left
Answer:
The procedure results in a binomial distribution
Step-by-step explanation:
If all 120 couples used the YSORT method, it is fair to assume that the probability of a baby being a boy or a girl are constant through all trials (120 couples). Assuming 120 randomly selected couples, there is a fixed number of independent trials. Finally, since the babies can only be a boy or a girl, the binary condition is satisfied and thus, the distribution is binomial
It would be 10x5 + 3x8= 74
