C(16, 1) (.05)^1 (.95)^15 = .3706 = 37%
C(10, 7) (1/2)^7 (1/2)^3 = .117 = 11.7% ⇒ "A" seems closest
C(6, 4)(.623)^4(1 - .623)^2 = .321 = 32.1% ⇒ "C"
D. True / False
We have
C(10,6)(.51)^6 (.49)^4 = .213 ≈ 21% ⇒ "B"
Yep...!!!
Factor 720.....
72 * 10
8 * 9 * 5 *2
2^3 * 3^2 * 5^1 * 2^1
To have a perfect cube......we need "a" to be 3 * 5^2 * 2^2 = 300
So....the smallest value is
∛ [ 720 * 300 ] = ∛ [216000] = 60
Add the percentages in the white areas, NSS......that will give you your answer....
Correct, NSS !!!
Prob =
[ Number of black squares ] / [ Total Squares ] =
[ 32 ] / [ 64 ] =
1 / 2 =
50% =
.50 ⇒ "B"
