madhu worked 2 1\2 hour on Monday, 3 1/4 hrs. on Tuesday, and 2 3/4 hrs. on Wednesday. what is the mean number of hour she worked on these three days?
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the mean number of hour she worked is 8hr
Step-by-step explanation:
mean = no of observation /total no of observation
mean = a+d+c/3
mean = 21/2+31/4+23/4/3
mean = 24/3
mean = 8
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