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കാൾപെഴ്‌സൺ സ്‌ക്യൂനത ഗുണാങ്കം കണ്ടെത്തുക

വിലകൾ

6

12

18

24

30

36

42

f

4

7

9

18

15

10

3

A0.54

B0.089

C0.214

D0.123

Answer:

B. 0.089

Read Explanation:

കാൾപെഴ്‌സൺ സ്‌ക്യൂനത ഗുണാങ്കം

$S_k = \frac{mean - mode}{standard-deviation}$

x

f

$x_if_i$

$x^2$

$fx^2$

6

4

24

36

144

12

7

84

144

1008

18

9

162

324

2916

24

18

432

576

10368

30

15

450

900

13500

36

10

360

1296

12960

42

3

126

1764

5292

66

1638

46188

mean = ∑$x_if_i$/ f = 1638 / 66 = 24.82

mode = 24

𝜎 = $\sqrt{(∑fx^2)/N - (∑fx/N)^2}$

𝜎 = $\sqrt{(46188/66)- (1638/66)^2}$

𝜎 = 9.16

$S_k = \frac{24.82-24}{9.16}$

$S_k = 0.089$


Related Questions:

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