Question 30

Upper limit of class interval 75 - 85 is
(a) 10
(b) -10
(c) 75
(d) 85

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Solution

(d) Upper limit of class interval 75-85 is 85.

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Question 30

Upper limit of class interval 75 - 85 is
(a) 10
(b) -10
(c) 75
(d) 85

Q. Upper limit of class interval

75 - 85

is:

Fill in the blanks :
(i) Lower class limit of 15-18 is ___ .
(ii) Upper class limit of 24-30 is ___.
(iii) Upper limit of 5-12.5 is ___.
(iv) If the upper and the lower limits of a class interval are 16 and 10; the class interval is ___.
(v) If the lower and the upper limits of a class interval are 7.5 and 12.5; the class interval is ___.

The following table gives the literacy rate (in percentage) of $35$ cities.

$\begin{matrix} Class Interval & 45 - 55 & 55 - 65 & 65 - 75 & 75 - 85 & 85 - 95 No.of cities & 3 & 10 & 11 & 8 & 3 \end{matrix}$

Find the mean literacy rate.

Q. Below given is the pulse count of 40 patients.
66, 79, 89, 67, 72, 82, 85, 80, 82, 81, 67, 87, 71, 68, 63, 74, 73, 86, 84, 75, 85, 80, 85, 61, 75, 85, 80, 85, 61, 75, 68, 69, 64, 75, 73, 72, 82, 76, 74, 77.
Group the data first in discontinuous class intervals such that one of the class intervals is 70-74.
Next, group the data in continuous class intervals such that one of the class intervals is 85-90.
Find the second class interval and the corresponding frequency of the class for both the groupings of the data.

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Question 30 Upper limit of class interval 75 - 85 is (a) 10 (b) -10 (c) 75 (d) 85

(d) Upper limit of class interval 75-85 is 85.

Question 30

Upper limit of class interval 75 - 85 is
(a) 10
(b) -10
(c) 75
(d) 85