This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: ECDN EDIEM 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 maniaer). % 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 FltLEI”:
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 ﬁom 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}: xiv1; .;
Cb : Ffah Fro} freon} = s51 s2. _ .r ; pg; bjPQr'iE) H : Ffsoej ; rt FriFili {If} 1“ Uﬂdﬂl‘gl'ﬂdm Student9 are either, mm SD: Sophomores, J: Jon'sits= 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 ﬁesinnon 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: joté Eﬂliﬁ'bi /_.
Astodcntwboisascniorlikcsclassicalmusic. [PI/L 091:} : ai gr: .. (:14?
L 55: F’KLﬁgEl 55f! _ 1
cm —, ._;,._ _. . 4
Phi) ’1’
Astudcntlikcsclossicalmusicgisasopbomorc. Fr; K155 : : .1 F n“! =  ’3’? lQHLUE): Prtj+sr5m_?r;nsoj
z aim06 = 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 3trEMs;Fr:s}: rx I: or ...
View
Full Document
 Fall '08
 Staff

Click to edit the document details