Question2 upto part3.rtf

# Question2 upto part3.rtf - Question 1 In a survey 24 IT...

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Question 1 In a survey, 24 IT professionals in Chicago were asked how much their annual salary was for the year 2012. The results are shown below: \$109,000 \$ 65,000 \$ 65,000 \$ 59,000 \$ 180,000 \$ 101,325 \$ 130,000 \$95,000 \$ 81,500 \$69,000 \$71,500 \$ 74,880 \$64,000 \$72,000 \$ 71,000 \$ 82,300 \$49,000 \$51,200 \$ 39,000 \$48,500 \$64,330 \$ 41,100 \$52,330 \$82,000 Construct a frequency distribution with 5 classes Annual salary Tally Frequency 39000 - 69000 IIII IIII II 12 70000-99000 IIII III 8 100000 - 129000 II 2 129001 - 159000 I 1 159001- 189000 I 1 Lower limit= \$ 39,000, Upper Limit= \$ 180,000 Class Interval= Upper Limit – Low Limit Therefore: ( \$180,000 - \$ 39,000) Class interval = 141,000 Frequency distribution = 5 Create a histogram of the data using the frequency table from question 1-a.

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A software company asked 100 of its programmers to develop a certain program individually. The following histogram shows the time it takes a programmer to finish the

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• Fall '15
• soft
• Quartile, Frequency distribution, Annual Salary, Quantile

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