Question

ももこ です👀

請問問a和i 為什麼是錯的? 謝謝🙏

《例了97

j (30%) True or aJse. JStfy yoir anSwet、                                                                                              一二
上   Ng 孖EzndFare ivwo independent cvcnls, then the sum OfT(E) and 上(F) cannot exeeed 1
了

十/ p There isaone in Six chance ofrolling apair iftwo dice are rolled.

FI ce     攝fwo evenfs are mutually cxclusive, 了en the sum of therr probablilties is 1.
】 攝hwo evenfs are independent, 由en fthey are automatically inutually exclusive.

上 ce 至PCEF) =三PCE)+PCF), fhen王 and Fmust be disjolnt,
了    f 攝acoin is fossed ve times, then the probabillty of heads corming up twice ls the same
as ffhe probabiHry ofheads coming up three times.
二 姑 孖heads has corme ip six fimes 閏arow, then tails is more likely to come up on the

       Seven tos5.
和       品 攝yon foss a coin seyen fimes, is Inore likely 了at heads wlll come up Six times and

fails once 包an 包af heads will come up seven timnes in arow.
之   抱 Arandom varlabpje must as51gn a 中fferent number to each possible outcorme,
地了 Testogram of補 wi be hest at the expected value 0f 入,

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Answer 1

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Sanbert Wong

i的那一題我解釋得不太好，希望你明白。

ももこ です👀

不好意思 ，請問i那題 ~如果用通過考試的機率(用二項分配)來看 通過與不通過的機率不同的話 這題的答案也會成立嗎？ 抱歉我可能沒很懂題目的意思

Sanbert Wong

題目的意思是
對於“random variable”裏面，每一個有機會出現的可能性需不需要一個不同的數值來代表。

ももこ です👀

了解 真的很謝謝你😃