A bag contains n counters.

One counter is blue and the rest are red.

Two counters are taken at random from the bag.

a) Express, in terms of n, the probability that a counter of each colour is taken.

Give your answer as a fraction in its simplest form.

b) The probability that a counter of each colour is taken is 0.125 How many red counters are in the bag?

the answer

b. they are parallel and will never intersect.

answer: 33 ( approx)

step-by-step explanation:

since, in the linear regression formula, the slope is the a in the equation y = b + ax ( by comparing it with the general equation of line y = mx + c )

where,

here given table is,

price ($), x   :           18         23       25       29       30       33

pairs sold, y :         16         13         10       8         6       2

so, ,   ,   ,

and   ,

thus, slop of the given line is,

⇒  

⇒   ≈ 33

you didn't give an question you just gave us a statement