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【简答题】
一个具有 n=64 个观测值的随机样本抽自于均值μ=20,标准差σ=16的总体。 (1)请给出 的抽样分布(重复抽样)的均值和标准差。 (2)你认为 至多偏离μ多远? (3)为回答(2),必须要知道μ吗?为什么?
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举一反三
【单选题】Lin, Inc. purchased supplies for $700 during 2015. At year end Lin had $ 500 of supplies on hand. The adjusting entry should:
A.
Debit Supplies $200
B.
Credit Supplies $500
C.
Debit Supplies Expense $200
D.
Debit Supplies $500
【单选题】Questions 17 to 20 are based on the passage you have just heard.
A.
People like foods of their native lands.
B.
Large cities offer international sample of foods.
C.
Even small cities offer various international foods.
D.
People eat foods of other nations to understand their culture.
【简答题】Purchased $500 of supplies on account.
【单选题】Cancer develops over a long time, which means that you have years——typically decades——in which to hinder or promote it. Researchers are finding that what you eat may interfere with cancer growth at va...
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】If a person visits too many places in a short time, .
A.
he will have a better knowledge of other countries
B.
he will eat more various foods
C.
he will not have a good rest
D.
he will not get a true impression of any place
【简答题】B: Good morning, sir. May I take _____________? G: All right. Thank you very much. B: _____________, sir. May I have your room card? G: Certainly. _______________. B: Thank you, sir. Your room is on t...
【简答题】连词成句。 1. old your how is mother (?) 2. is how your room large (?) 3. wants to he football play (.) 4. my smaller is bag Tom's than (.) 5. pencil 20 cm my...
【单选题】Your room is ___ than mine.
A.
three time big
B.
three times big
C.
three times bigger
D.
bigger three times
【单选题】What was purchased by the customer?
A.
Appliances
B.
Grocery items
C.
Clothes
D.
Office supplies
【简答题】Translate the followings from English into Chinese please. 1. It’s open from 9:30 am 11:00pm. Sorry, sir smoking is not allowed here. Please watch your steps. May I see your room card? We offer 20% di...
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