The document is a worksheet about distance-time graphs. It contains questions about identifying different parts of a distance-time graph showing constant speed, rest, or acceleration. It also asks the student to calculate the speed from the given graph and sketch example graphs for different scenarios like constant speed, acceleration, etc. The solution section provides the answers to the matching questions and speed calculation.
This topic is based on research in Computer Science | Pattern Recognition | Probability and Statistics.
Here, we discuss Regression Line with a simple example. Basics of Line equation is demonstrated with a real-world example.
Eg: A railway track is paved in a line connecting various cities. It can be associated with the google maps with cities connected by the flight route / railway route.
Eg: Politicians demanding alternative route for railway constructions
This video is contributed by
https://sites.google.com/view/amarnath-r
Sample Program:
https://sites.google.com/view/amarnath-r/introduction-to-regression-analysis
This topic is based on research in Computer Science | Pattern Recognition | Probability and Statistics.
Here, we discuss Regression Line with a simple example. Basics of Line equation is demonstrated with a real-world example.
Eg: A railway track is paved in a line connecting various cities. It can be associated with the google maps with cities connected by the flight route / railway route.
Eg: Politicians demanding alternative route for railway constructions
This video is contributed by
https://sites.google.com/view/amarnath-r
Sample Program:
https://sites.google.com/view/amarnath-r/introduction-to-regression-analysis
CONSTRUCTION STATISTICS pr by Dereje jimaDereje Jima
STATISTIC Samples for CONSTRUCTION Project 1. The below table shows the Nano metakaolin Mixed with Concrete, X Compressive strength of concrete, Y, per concrete cubes, for 7 different percentages.
a. Find the correlation coefficient and interpret your result.
b. Find the equation of the regression line and predict the compressive strength of the concrete cube of Nano Metakolin mixed with the concrete at 18% and 23%
2. The cement bags were used in different construction sites as shown in the below table.
a. Find the correlation coefficient and interpret your result.
b. Find the equation of the regression line and predict the number of cement bags was used to construct 9th,17th, and 20-floor buildings.
3.The deflections of the C 40 grade concrete beam by gradual loading condition as shown in the below table.
a. Find the correlation coefficient and interpret your result.
b. Find the equation of the regression line and predict the deflection of the concrete beam at 30kN, 40kN, and 45kN.
4. The construction work has completed in different places on different days. The details were shown in the below table.
a. Find the correlation coefficient and interpret your result.
b. Find the equation of the regression line and predict the number of laborers who need to complete the work at 153 days.
5. Calculate the partial (first-order) correlation between Working hours (Y) and the number of Workers (X), controlling for Workers Years of Experience (Z).
6. Calculate the Multiple correlations between Working hours (Y) and number of Workers (X), controlling for Workers Years of Experience
CONSTRUCTION STATISTICS pr by Dereje jimaDereje Jima
STATISTIC Samples for CONSTRUCTION Project 1. The below table shows the Nano metakaolin Mixed with Concrete, X Compressive strength of concrete, Y, per concrete cubes, for 7 different percentages.
a. Find the correlation coefficient and interpret your result.
b. Find the equation of the regression line and predict the compressive strength of the concrete cube of Nano Metakolin mixed with the concrete at 18% and 23%
2. The cement bags were used in different construction sites as shown in the below table.
a. Find the correlation coefficient and interpret your result.
b. Find the equation of the regression line and predict the number of cement bags was used to construct 9th,17th, and 20-floor buildings.
3.The deflections of the C 40 grade concrete beam by gradual loading condition as shown in the below table.
a. Find the correlation coefficient and interpret your result.
b. Find the equation of the regression line and predict the deflection of the concrete beam at 30kN, 40kN, and 45kN.
4. The construction work has completed in different places on different days. The details were shown in the below table.
a. Find the correlation coefficient and interpret your result.
b. Find the equation of the regression line and predict the number of laborers who need to complete the work at 153 days.
5. Calculate the partial (first-order) correlation between Working hours (Y) and the number of Workers (X), controlling for Workers Years of Experience (Z).
6. Calculate the Multiple correlations between Working hours (Y) and number of Workers (X), controlling for Workers Years of Experience
![-10795-2540XINMIN SECONDARY SCHOOL<br />Secondary 3 SCIENCE (NT)<br />WORKSHEET: distance – tIme Graph<br />Name: ……………………………………… ( )Class: ……… Date: …………<br />What does each part of the distance – time graph describe? Match the correct description to the letters.<br />,[object Object],The distance – time graph below describe the motion of a toy car.<br />Distance / mTime / s<br />5<br />0<br />510<br />(a) The toy car is: at rest / moving at constant speed / accelerating<br />(b) Calculate the speed of the car at 5 s.<br />Ans:_______________<br />Sketch the distance – time graph for each corresponding scenario.<br />ScenerioDistance – time graphAt rest0Time / sDistance / mConstant speedAcceleratingDecelerating<br />-10795-2540XINMIN SECONDARY SCHOOL<br />Secondary 3 SCience (NT)<br />WORKSHEET: distance – time graph<br />SOLUTION<br />1 <br />,[object Object],2 a) The toy car is: at rest / moving at constant speed / accelerating<br />b) 0.5 m/s<br />3 <br />ScenerioDistance – time graphAt restDistance / mTime / s0Constant speedDistance / mTime / s0AcceleratingDistance / mTime / s0DeceleratingDistance / mTime / s0<br />](https://image.slidesharecdn.com/distancetimegraphs-101006112351-phpapp01/85/Distance-time-graphs-1-320.jpg)
