Show Answer to the Exercise:

Caroline will get better mark than James in two subjects.

= 170.8, med(x) = 171, mod(x) = 173, s² = 21.87, s = 4.7

med(x) = 1.00, s² = 0.0012

med(x) = 154.5, mod(x) = 158, = 154.47

= 157.1 cm, = 48.4 kg, r = 0.856
There is a high degree of linkage between the height and the weight of the ten students.

a)

b)

c) = 70.46, s² = 310.89

d) = 71, s² = 321.38

1st type: = 307.42, med(x) = 310, mod(x) = 310
2nd type: = 301, med(x) = 313, mod(x) = 313

μ ∈ < 109.65 ; 114.35 >

μ ∈ < 0.1373 ; 0.1422 >

σ ∈ < 3.790 ; 8.549 >

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