Abox contains 4 red and 3 blue poker chips. three chips are pulled random. what is the probability that all are red with a replacement

No. If red balls = 4, Total no. Of balls = 7

Prob of getting first red = 4/7

Second red = 4/7

Third red = 4/7

As all balls are taken out with replacement ,therefore total no. Of red balls remain same

Probability of drawing all red = 4/7×4/7×4/7

=64/343

1. sometimes

2. never true

3. sometimes

step-by-step explanation:

these are pretty self explanatory if you know what supp right and com angles are