Answer:
0.0152 probability
Step-by-step explanation:
first there are 12 marbles: odds are 2/12 = 1/6
Then, there are 11 marbles: odds are 1/11
So the odds of both of them being blue are: 1/6 * 1/11 = 0.0152
Please give brainliest thanks!
Answer:
72
Step-by-step explanation:
72
60 x 120
100
= 72
Answer:
Step-by-step explanation:
Given
Probability that an inspector doe not identify low-quality timber=0.20
(a)Probability that both inspector do not identify a low quality timber

(b)Let n be the no of inspector
Probability should be less than 1%=0.01
so 
Taking
both sides

x>2.861
thus minimum value of x is 3
(c)From part b it is clear that minimum 3 officer are required to to keep the low quality timber below 1%
on an average 2 officer are not sufficient to identify 4 low quality timber out of 100
17⁻¹⁸ / 17⁷=17⁻¹⁸⁻⁷=17⁻²⁵
a^n / a^m=a^(n-m)
Answer: 17⁻¹⁸ / 17⁷=17⁻²⁵
b)
11⁻⁶ / 11⁻⁷=11⁻⁶⁻(⁻⁷)=11⁻⁶⁺⁷=11¹=11
Answer: 11⁻⁶ / 11⁻⁷=11