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Following are the wages of 8 workers in rupees:
50, 62, 40, 70, 45, 56, 32, 45
If one of the workers is selected at random, what is the probability that his wage would be lower than the average wage?
  • a)
    0.625
  • b)
    0.500
  • c)
    0.375
  • d)
    0.450
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Following are the wages of 8 workers in rupees:50, 62, 40, 70, 45, 56,...
Given:
Wages of 8 workers in rupees:50, 62, 40, 70, 45, 56, 32, 45

To find:
Probability that a worker's wage would be lower than the average wage.

Solution:
Step 1: Calculate the average wage
Average wage = (50+62+40+70+45+56+32+45)/8
Average wage = 47.5

Step 2: Find the number of workers whose wage is lower than the average wage
Number of workers whose wage is lower than the average wage = 3 (out of 8)

Step 3: Calculate the probability
Probability = Number of workers whose wage is lower than the average wage / Total number of workers
Probability = 3/8
Probability = 0.5

Therefore, the probability that a worker's wage would be lower than the average wage is 0.5 or 50%. Hence, option B is the correct answer.
Free Test
Community Answer
Following are the wages of 8 workers in rupees:50, 62, 40, 70, 45, 56,...
Average wages= (50+62+40+70+45+56+32+45)/8 = 400/8
 = 50
Favourable outcome={ 40,45,32,45}
                                     =4
Total outcome= 8
Probability of lower wages which is less than the average wages = 4/8
                                           =1/2
                                            = 0.500
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Following are the wages of 8 workers in rupees:50, 62, 40, 70, 45, 56, 32, 45If one of the workers is selected at random, what is the probability that his wage would be lower than the average wage?a)0.625b)0.500c)0.375d)0.450Correct answer is option 'B'. Can you explain this answer?
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