You flip an unfairly weighted coin 4 times. If the probability of getting a ta is 0.38 What is the probability you will get at most 2 tails

the answer is c)8

step-by-step explanaction:

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,