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Category > Statistics Posted 15 Jun 2017 My Price 5.00

Life Spans of Fruit Flies

Life Spans of Fruit Flies The life spans of a species of fruit fly have a bell-shaped distribution, with a mean of 33 days and a standard deviation of 4 days.

(a) The life spans of three randomly selected fruit flies are 34 days, 30 days, and 42 days. Find the z-score that corresponds to each life span. Determine whether any of these life spans are unusual.

(b) The life spans of three randomly selected fruit flies are 29 days, 41 days, and 25 days. Using the Empirical Rule, find the percentile that corresponds to each life span.

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Alpha Geek
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Status NEW Posted 15 Jun 2017 03:06 PM My Price 5.00

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file 1497540732-1259383_1_636330061322966847_1259383.docx preview (66 words )
a-----------) -----------z s-----------cor-----------e =----------- (X------------me-----------an)-----------/sd-----------mea-----------n 3-----------3 -----------sd4----------- X----------- Z -----------sco-----------re ----------- 34----------- =-----------(34------------33-----------)/4----------- 0.-----------25 ----------- 30----------- =-----------(30------------33-----------)/4----------- -0-----------.75----------- 4-----------2 -----------=(4-----------2-3-----------3)/-----------4 2-----------.25----------- b-----------) -----------Ass-----------umi-----------ng -----------tha-----------t t-----------he -----------lif-----------e s-----------pan----------- is----------- no-----------rma-----------lly----------- di-----------str-----------ibu-----------ted-----------: -----------per-----------cen-----------til-----------e t-----------hat----------- co-----------rre-----------spo-----------nds----------- to----------- li-----------fe -----------spa-----------n o-----------f 2-----------9 d-----------ays----------- ==----------- -1----------- sd-----------'s -----------= 1-----------5.8----------- pe-----------rce-----------nti-----------le ----------- pe-----------rce-----------nti-----------le -----------tha-----------t c-----------orr-----------esp-----------ond-----------s t-----------o l-----------ife----------- sp-----------an -----------of -----------41 -----------day-----------s =-----------= +----------- 2 -----------sd'-----------s =----------- 97-----------.8 -----------per-----------cen-----------til-----------e -----------per-----------cen-----------til-----------e t-----------hat----------- co-----------rre-----------spo-----------nds----------- to----------- li-----------fe -----------spa-----------n o-----------f 2-----------5 d-----------ays----------- ==----------- -2----------- sd-----------'s -----------= 2-----------.2 -----------per-----------cen-----------til-----------e -----------
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