# يسرى عبداللطيف طاشكندي

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Home Work

1: Question 7 Page 6

Solution :

Q#7) The following histogram shows the frequency distribution of pathologic tumor size (in cm) for a sample of 110 Cancer patients:

[1] The percent of patient Cancer patients with approximate level of pathologic tumor size=2 cm is:

(a) 18%            (b) 50%       (c) 16.36%       (d) 32.72% (e) 36%   (f) 0%

[2] The number of Cancer patients with  the lowest pathologic tumor size is :

(a) 0.5              (b) 3             (c) 11               (d) 13         (e) 15       (f) 24

[3] The approximate size of pathologic tumor with highest percentage of patients is :

(a) 3                 (b) 1             (c) 36               (d) 110       (e) 32.72%   (f) 16.36%

[4] What is the approximate value of  sample mane?

(a) 18.33         (b) 36            (c) 1                 (d) 1.75  (e) 1.586     (f) we can’t find it

[5] The mode take a value near

(a) 1                 (b) 3             (c) 36               (d) 55      (e) 110    (f) we can’t find it

2: Question 14 Page 9

Solution :

Q#14)  The following table gives the results of a survey to study the ages and hemoglobin level of patients of a certain clinic.

 Mean Standard Deviation Age  (Years) 30 6 Hemoglobin level (g/dl) 60 10

Determine whether hemoglobin levels of patients are more variable than ages.

C.V(Age)= (6/30) * 100= 20%

C.V(Hemoglobin)= (10/60) *100= 16.67%

The Age are more variable

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