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A team of ten (10) construction workers who are working on a project are classified according to the skill levels, Classes A to D. The table below shows the number of workers in each of the four (4) classes and their respective hourly pay-rate. Pay-rate (Rands/hour) Number of workers Class A 80 60 1 3 Class B Class C Class D 55 2 50 4 Calculate the mean hourly pay-rate for the 10 workers. A. R24.50/hour B. R57/hour C. R57.50/hour D. R61.75/hour

A team of ten (10) construction workers who are working on a project are classified according to the skill levels, Classes A to D. The table below shows the number of workers in each of the four (4) classes and their respective hourly pay-rate. Pay-rate (Rands/hour) Number of workers Class A 80 60 1 3 Class B Class C Class D 55 2 50 4 Calculate the mean hourly pay-rate for the 10 workers. A. R24.50/hour B. R57/hour C. R57.50/hour D. R61.75/hour

Algebra: Structure And Method, Book 1
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter7: Applying Fractions
Section7.2: Proportions
Problem 47WE
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A team of ten (10) construction workers who are working on a project are classified according to the skill levels, Classes A to D. The table below shows the number of workers in each of the four (4) classes and their respective hourly pay-rate. Pay-rate (Rands/hour) Number of workers Class A 80 Class B 60 Class C 55 Class D 50 4. Calculate the mean hourly pay-rate for the 10 workers. A. R24.50/hour B. R57/hour C. R57.50/hour D. R61.75/hour
Transcribed Image Text:A team of ten (10) construction workers who are working on a project are classified according to the skill levels, Classes A to D. The table below shows the number of workers in each of the four (4) classes and their respective hourly pay-rate. Pay-rate (Rands/hour) Number of workers Class A 80 Class B 60 Class C 55 Class D 50 4. Calculate the mean hourly pay-rate for the 10 workers. A. R24.50/hour B. R57/hour C. R57.50/hour D. R61.75/hour
To set aside funds for fuel for mid-level and senior managers, a large financial institution col- lects data on the distance travelled to work by each of its 55 mid-level and senior managers. The data is shown in the table below. Distance(km) Number of managers 0 - 10 10 – 20 23 20 - 30 18 30 - 40 40 – 50 Find the estimate for the mean and standard deviation of the distance travelled to work by these managers. A. Mean = 21.73, Standard deviation = 8.76 B. Mean = 21.73, Standard deviation = 9.82 C. Mean = 25.45, Standard deviation = 8.76 D. Mean = 25.45, Standard deviation = 9.82
Transcribed Image Text:To set aside funds for fuel for mid-level and senior managers, a large financial institution col- lects data on the distance travelled to work by each of its 55 mid-level and senior managers. The data is shown in the table below. Distance(km) Number of managers 0 - 10 10 – 20 23 20 - 30 18 30 - 40 40 – 50 Find the estimate for the mean and standard deviation of the distance travelled to work by these managers. A. Mean = 21.73, Standard deviation = 8.76 B. Mean = 21.73, Standard deviation = 9.82 C. Mean = 25.45, Standard deviation = 8.76 D. Mean = 25.45, Standard deviation = 9.82
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from the data in question 5, find the estimate for the mode

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To set aside funds for fuel for mid-level and senior managers, a large financial institution col- lects data on the distance travelled to work by each of its 55 mid-level and senior managears. The data is shown in the table below. Number of managers Distance(km) 0 - 10 10 - 20 20- 30 30- 40 40- 50 23 18 Find the estimate for the mcan and standard deviation of the distance travelled to work by theso managors. A. Mean = 21.73, Standard deviation = 8.76 Mean = 21.73, Standard deviation = 9.82 C. Mean = 25.45, Standard deviation = 8.76 D. Mean = 25.45, Standard deviation = 9.82 B. For the data in Question 5, find the estimate for the mode. А. 23 В. 20.28 C. 17.92 D. 15
Transcribed Image Text:To set aside funds for fuel for mid-level and senior managers, a large financial institution col- lects data on the distance travelled to work by each of its 55 mid-level and senior managears. The data is shown in the table below. Number of managers Distance(km) 0 - 10 10 - 20 20- 30 30- 40 40- 50 23 18 Find the estimate for the mcan and standard deviation of the distance travelled to work by theso managors. A. Mean = 21.73, Standard deviation = 8.76 Mean = 21.73, Standard deviation = 9.82 C. Mean = 25.45, Standard deviation = 8.76 D. Mean = 25.45, Standard deviation = 9.82 B. For the data in Question 5, find the estimate for the mode. А. 23 В. 20.28 C. 17.92 D. 15
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