Answer:
The fertility rate measures the number of births per 1,000 women of childbearing age (ages 15 to 44) occurring in a particular year; birth rates refer to this measure within particular age groups.
Explanation:
There are C(29, 4) = 29!/(4! (29 - 4)!) ways of selecting any 4 students from the total 21 + 8 = 29 students.
The teacher has C(21, 2) = 21!/(2! (21 - 2)!) ways of picking out 2 sophomores and C(8, 2) = 8!/(2! (8 - 2)!) ways of picking out 2 freshmen, so there are
C(21, 2) • C(8, 2) = 5880
possible ways of picking out 2 sophomore and 2 freshmen.
The probability of picking out a group of students like this is then
C(21, 2) • C(8, 2) / C(29, 4) = 280/1131 ≈ 0.2476
I’m not 100%, but i’d say A
Answer:
Wait, i will answer this later
Explanation:
Wait for my idea okay?
Answer:
People reflect the laws.
Explanation:
The people are the ones with the morals and standards, it's like Umbridge in Order of the Phoenix. If people aren't happy, it's because the laws are tight and singular and possibly indubitable. Whoever enforces them has a strict constitution of said laws. Depending on these laws, depression and hostility can become common. This is only a dark side answer to this question, there are dozens of possibilities.
