Question

Medal and fan....Can someone check my answers to part A and B and help me with Part C

Answer 1

A student is assessing the correlation between the number of workers in a factory and the number of units of output produced daily. The table below shows the data:


Number of workers
(x) 0 10 20 30 40 50 60 70 80 90
Number of units of output
(y) 2 52 102 152 202 252 302 352 402 452


Part A: Is there any correlation between the number of workers in a factory and the number of units of output produced daily? Justify your answer.

Part B: Write a function which best fits the data.

Part C: What does the slope and y-intercept of the plot indicate?

Answer 2

Part A Yes there is a corralation between the # of workers(x) and the # of units of output (y) because x is incresing by 10 at the same time y is increasing by 50 .. x and y are both increasing at the same rate

Answer 3

Part B f(x)=5x+2

Answer 4

@jim_thompson5910 could you please help and check my work please

Answer 5

@johnweldon1993

Answer 6

Another way to state A is that all of the points fall on the same line, which is 5x+2

so there's a perfect correlation, ie a causation. If we know x, then we can definitely figure out y

Answer 7

Well the number of workers is increasing by 10, and at the same time, the # of units increases by 50 each time ... so both are increasing together , and they are increasing at the same rate

Answer 8

@jim_thompson5910 ok i understand that is part B ok then ..

Answer 9

what did you get for part C