The ranks of 15 studenlí . in two subjecls ļ B vare within bracketé denotes the rank of a sludent in C,10), (2,7),3, 2), (4,6), (5,4), (6,8) (7,3) , (8,1), (9, 11), (10,15), (11, 9), C12,5) (13, 14), (14,12), (15,13) Caloulate Spearman's rank correlelion coefficiont. A & B are given blow . The lwo nimbers Subjicte A & B respectively to

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82. The ranks of 15 sludentí. in two subjeclí
A ļ B vare
within brackete denetes the rank of a
sludent in Subjielé A &B mspeclively
1,10), (Q,7),"3, 2), (4,6), (5,4), (6,8)
(7,3) , (8,1) , (9, 11), (10,15), (11, 9), C12,5)
(13, 14), (14,12), (15,13)
Calculate Spearman's rank correlelion
teefficiant.
given below .. The two numbers
9 3. the followung calculalions have been made
for 'hrices" of livelue stocks (x) at the
Calentta Stock Excharge
along soith the volume "of
of shares (y). From theie calculalions find
the
regresion equalion f frice af
on a certain day
sales in thonsands
iof
stocks
Date
Page
of
shares :
Ex² =41658
on the volume
of sales
Σ58O, Σ4 370
Eye= 17206, 'Ixy
l1494
84. The dala gwes the scons
fallowing
gues
oblained by a saleuman ga company
in intellegence test and thlir soakly
sales:
Lest
score (x) : 50, 60,50, 60, 80, 50, 80,40, 70
lWeekly
salei (4): 30, 60,40,50, 60, 30, 70, 50, 60
(a)
Abtain the regression equalion o salu
en intelligence test score's of
(4) f the intilligence lest scóre of a
salesmas is 65, what would be his
eefectid weekly sales?
the salesman
e
85. From the giwen set
of
biuariale dala , the
fallowring resulls wire obtained,
E'= 53·2 and y = 27.9
Regression doefficint ģ y
-1•5
o * en y - - 0•2
of
Fand the most frobable value of y when
N =60• Also find the value of ř !
Transcribed Image Text:82. The ranks of 15 sludentí. in two subjeclí A ļ B vare within brackete denetes the rank of a sludent in Subjielé A &B mspeclively 1,10), (Q,7),"3, 2), (4,6), (5,4), (6,8) (7,3) , (8,1) , (9, 11), (10,15), (11, 9), C12,5) (13, 14), (14,12), (15,13) Calculate Spearman's rank correlelion teefficiant. given below .. The two numbers 9 3. the followung calculalions have been made for 'hrices" of livelue stocks (x) at the Calentta Stock Excharge along soith the volume "of of shares (y). From theie calculalions find the regresion equalion f frice af on a certain day sales in thonsands iof stocks Date Page of shares : Ex² =41658 on the volume of sales Σ58O, Σ4 370 Eye= 17206, 'Ixy l1494 84. The dala gwes the scons fallowing gues oblained by a saleuman ga company in intellegence test and thlir soakly sales: Lest score (x) : 50, 60,50, 60, 80, 50, 80,40, 70 lWeekly salei (4): 30, 60,40,50, 60, 30, 70, 50, 60 (a) Abtain the regression equalion o salu en intelligence test score's of (4) f the intilligence lest scóre of a salesmas is 65, what would be his eefectid weekly sales? the salesman e 85. From the giwen set of biuariale dala , the fallowring resulls wire obtained, E'= 53·2 and y = 27.9 Regression doefficint ģ y -1•5 o * en y - - 0•2 of Fand the most frobable value of y when N =60• Also find the value of ř !
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