21. Duncan and Mary Jane have been married for 17 years and they have nine hands
ID: 23286 • Letter: 2
Question
21. Duncan and Mary Jane have been married for 17 years and they have nine handsome sons. Mary Jane really wants a daughterto wear the wedding dress that her mother, Quin, made for her.
The chance that their next child will be a girl, assuming that
the law of independence holds is
a. (1/2)10 b. 1/2 c. (1/3)10 d. 2-10 e. 1/5
22. The fraction of nine child families which are all male is
a. (1/2)9 b. 1/2 c. 219 d. 6 e. 5/19
23. Under normal conditions the expected sex ratio in humans is
1:1, 50:50 or 1/2 : 1/2. The chi-square associated with Duncan and Mary Jane's little family, under this hypothesis is
a. 4576.45 b. 9 c. 3.84 d. 6.78 e. 0.0
24. The probability that sex determination is normal for Duncan and Mary Jane may be
a. accepted as consistent with the data. b. rejected with a probability of less than .05 that a true hypothesis is being rejected. c. absolutely rejected d. a & b e. a & c
Explanation / Answer
21. Duncan and Mary Jane have been married for 17 years and they have nine handsome sons. Mary Jane really wants a daughter
to wear the wedding dress that her mother, Quin, made for her.
The chance that their next child will be a girl, assuming that
the law of independence holds is
a. (1/2)10 b. 1/2 c. (1/3)10 d. 2-10 e. 1/5
every issue is new and independent event
22. The fraction of nine child families which are all male is
a. (1/2)9 b. 1/2 c. 219 d. 6 e. 5/19
p=1/2-------male
q=1/2-------female
(p+q)^9 =p^9........q^9
23. Under normal conditions the expected sex ratio in humans is
1:1, 50:50 or 1/2 : 1/2. The chi-square associated with Duncan and Mary Jane's little family, under this hypothesis is
a. 4576.45 b. 9 c. 3.84 d. 6.78 e. 0.0
=(0-e)^2 /e
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.