Directions: Read the following information to answer the question.
If the Mean wage is Rs.41.95, find the number of workers in the class interval 35-39.
32
That's Wrong
37
That's Wrong
20
That's right
24
That's Wrong
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Directions: Read the following information to answer the question.
If the daily wages of all the workers is increased by Rs.4, what will be the new mean wage?
Rs.42.75
That's Wrong
Rs.42.95
That's Wrong
Cannot be determined
That's right
Rs.45.95
That's Wrong
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Directions: Read the following information to answer the question.
The weights in kilograms of 10 students are 52, 45, 31, 35, 40, 55, 60, 38, 44, 36. If 44 is replaced by 46 and 40 is replaced by 35 then new median will be:
42
That's Wrong
41.5
That's right
40.5
That's Wrong
40
That's Wrong
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+
Solution
Rearranging the weights 31, 35, 35, 36, 38, 45, 46, 52,
55, 60
Two Middle terms are 38, 45
?New Median = 38+ 45/2 = 41.5
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