Answer: 0.4181807
Step-by-step explanation:
Probability that American adults are pessimistic about the future of marriage and the family: p= 0.25
Sample size n= 20
Let
be the sample proportion of American adults that are pessimistic about the future of marriage and the family.

Hence, the required probability = 0.4181807
Answer:
0.0089 cm
Step-by-step explanation:
89/10 000
=0.0089
Answer:5/4
Step-by-step explanation:
1 1/4=(4×1+1)/4=5/4