Some cleaning jobs are disliked more than others. According to the July 17, 2009, USA Today Snapshot on a survey of women by Consumer Reports National Research Center, the cleaning tasks women dislike the most are presented in the following Pareto diagram.

a. How many total women were surveyed?
b. Verify the 15% listed for €œCleaning refrigerator.€
c. Explain how the €œcum % for dusting€ value of 80% was obtained and what it means.
d. What three tasks would make no more than 75% of the women surveyed happy if those tasks were eliminated?

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Cleaning Tasks That Women Dislike the Most 1000 800 600 400 200 100 80 60旨 40 a 20 Tasks Cleaning Cleaning Cleaning Dusting Others Mopping the floor shower/tub tollet refrigerator Count 262 252 15 9 Percent 26.0 25.0 15.0 14.0 11.0 9.0 Cum % 26.0 51.0 66.0 80.0 91.0 100.0