12. Komal worked for 2 hours on Monday, 3 hours on Tuesday and 2 hours on
4
Wednesday. What is the mean number of hours she worked on these three days?
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Answer:
Answer is 7 hrs
Step-by-step explanation:
Mean X bar = Sum of observation / No . of observation
Monday 2hrs / 3
Tuesday 2hrs / 4
Wednesday 2hrs / 3
= 3 days = 6/3 + 8/4 + 6 + 3
= 32 + 6 + 6 / 3
= 14 / 2
= 7
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