Answer:
Step-by-step explanation:
120 +-20 =(100 ; 140) -> X±k*σ= 100 =>k=1
According to Chebyshev, approximately 66.67% of the data lie within one standard deviation of the mean
->66.67%*560 = 373 products in (100;140)
y=-x+2
the slope is change in y over change in x and as y goes down one x goes over one
the y intercept is at (0,2)
step 2
BODMAS they multiplied first instead of dividing