Nasser wants to find an estimate for the number of birds in a bird sanctuary. One day he catches 80 birds and puts a non-harmful tag on each.
He then releases the birds back into the sanctuary.
The next day Nasser catches 60 birds and 15 of these birds have a tag on them.
Work out an estimate for the total number of birds in the bird sanctuary.

answer   download the app called socratic on your phoner:

step-by-step explanation:

explanation:

step-by-step explanation:

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

answer: $13,622.84

step-by-step explanation: check the picture for info and stats : )