A bag contains black counters, red counters and blue counters. Kim reaches into the bag 50 times, each
time noting the colour and replacing the counter. Kim
pulls out 10 black counters. Estimate the probability of
the next counter Kim pulls out being a black counter.

its 4

Step-by-step explanation:

mark as brainlest plz

a

explanation:

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have