quiz1AS-f07 - ECDN EDIE-M NAME x5:4 Slows A 1 Suppose that...

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Unformatted text preview: ECDN EDIE-M NAME: x5! :4 Slows A @ 1. Suppose that you collected a sample that contains the following observations: {10, 12, 25, 28, x}, where J: is unknown (it could be any real mania-er). % i)Findx for obtaining a sample mean of 18. fl: ro+l2+5§+3l+z : vii—+1 $.- 2:6 .3‘ (E5 ii} Findx for getting the smallest possible standard deviation. fir The 97¢!le iffissfiflrofl 9M. Wolfram , :1 {our fr. 241 {€515.17 fa "firm Flt-LEI”: so; at x: 4:; 3x:?“§+x -'—":=- 215:1? :lS‘ iii} Find values for x which make the sample distribution: 1 0 (a) Positively skewed gas can some of? serfs. mesa? fir; {was 51.2 n: _ For ixfirmyflf ' 1:; {fit} (b) Negatively skewed (c) Symmetric , . J __ .ffi if” cf legit: Q: 3. 5:} pf; is; if r»: _.5:'_-' ; visit-.5 “hi-,4: Jpn/124;! r; .v' supplier. The motors must be divided among three production lines, with 1three motors going to each line. If the assignment of motors to lines is random, find the probability that both motors from the particular supplier are assigned to the first line. O l]. A manufacturer has nine distinct motors in stock, two of which came fi-om a particular \0 '11: ' {PH E'- (“mg/1(7) , rjslsl Prob: ’ or Free : s e at a] (biigjilll 'glgiglm III. If A andlfige tndgpendem events with P(A)= £15 deB)=lJ.2. Find the @ following: a)P(AUB} ondfifil Wolf’s}: xiv-1; .; Cb :- Ffah Fro} freon} = s51 s2. _ .r ; pg; bjPQr'iE) H : Ffsoej ; rt Fri-Fili- {If} 1“ Ufldfll‘gl'fldm Student-9 are either, mm SD: Sophomores, J: Jon's-its= or W- Tim}F either ' ii cl si music or tho}.r do not like it. St} ”Va of students are freshman, 20% are: sophomores, and 20% are juniors. Also 9E! % of fi-esinnon DO NOT like classical music. Also TIM: of sophomoros, 50% of juniors, and 10% of seniors respectively DD NUT like classical music. Write in symbols the question that is being asked and find tho following probabilities: A stttdcnt is a junior aLd docs not likc classical music. ‘10 FEE; [GE]: of I: jot-é Efllifi'bi /_. Astodcntwboisascniorlikcsclassicalmusic. [PI/L 091:} : ai- -gr: .. (:14? L 5-5: F’KLfigEl 55f! _ 1 cm —, ._;,._ _. -. 4 Phi) ’1’ Astudcntlikcsclossicalmusicgisasopbomorc. Fr; K155 :- : .1 F n“! -= - ’3’? lQHLUE): Prtj+sr5m_?r;nsoj z aim-06 = so A studcnt who likes classical music is a senior. if P.5EgL Z= F555 flL) : .os :_ .1 l Fit} ‘7? | 1t; 50 ii SE | '4 WEN): as c. Frinrj:srf.o;1sy,cJ: 4.4.- .zfg WLKSO} - Pi . Primacy .- IVE/Jo} Fifi) : $3.91 ; ,Af 1335,13ng tr;— -—-. Pfiflg} -_ FFEXREFKF) '_ -§>r =1 ; .f I’t’i'r’iti: 1‘ _. H1 no 3-trEMs;Fr:s}: rx I: or ...
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