What triangles? there isn’t a picture of the triangles shown
Use this word problem just change the numbers
If a variable is binomially distributed with n trials and a success probability of p, then the mean = np, variance = np(1–p) and standard deviation = square root of variance.
In this case, n = 1200, p = 0.35. So, mean = (1200)(0.35) = 420,
variance = (1200)(0.35)(1–0.35) = 273,
standard deviation = square root of variance = √273 = 16.52.
The answer is 540 because 32/48 is 2/3 and 360/540 equals 2/3
