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2. The length of life of 220 incandescent 60-watt lamps was obtained and yielded the frequency distribution shown in the accompanying table. Complete the mean, median, mode and standard deviation. Hourly rate No. of teachers CF fx d. fd fd (f) 3 500–599 600– 699 7 700– 799 14 800– 899 900– 999 1,000– 1099 1,100– 1199 1,200– 1299 1,300–1399 1,400– 1499 28 64 57 23 13 7 4

2. The length of life of 220 incandescent 60-watt lamps was obtained and yielded the frequency distribution shown in the accompanying table. Complete the mean, median, mode and standard deviation. Hourly rate No. of teachers CF fx d. fd fd (f) 3 500–599 600– 699 7 700– 799 14 800– 899 900– 999 1,000– 1099 1,100– 1199 1,200– 1299 1,300–1399 1,400– 1499 28 64 57 23 13 7 4

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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The length of life of 220 incandescent 60-watt lamps was obtained and yielded the frequency distribution
shown in the accompanying table. Complete the mean, median, mode and standard deviation.

2. The length of life of 220 incandescent 60-watt lamps was obtained and yielded the frequency distribution shown in the accompanying table. Complete the mean, median, mode and standard deviation. Hourly rate No. of teachers CF fx d d? fd fd (f) 3 500–599 600– 699 7 700– 799 14 800- 899 28 900- 999 64 1,000– 1099 1,100– 1199 1,200– 1299 1,300–1399 1,400– 1499 57 23 13 7 4
Transcribed Image Text:2. The length of life of 220 incandescent 60-watt lamps was obtained and yielded the frequency distribution shown in the accompanying table. Complete the mean, median, mode and standard deviation. Hourly rate No. of teachers CF fx d d? fd fd (f) 3 500–599 600– 699 7 700– 799 14 800- 899 28 900- 999 64 1,000– 1099 1,100– 1199 1,200– 1299 1,300–1399 1,400– 1499 57 23 13 7 4
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