Answer:
0.4545 or 45%
Step-by-step explanation:
Do-Gooders toys for boys = 5
Southside toys for boys = 6
Given that the first toy pulled out of the bin is a toy for boys, to find the probability that this toy was donated by the Do-Gooders, the number of toys for girls donate shouldn't be considered since there's a zero-chance that the toy in question is for girls. Therefore:
![Total\ sample \ space = 5+6 =11\\P(Do-Gooders)=\frac{5}{11} =0.4545](https://tex.z-dn.net/?f=Total%5C%20sample%20%5C%20space%20%3D%205%2B6%20%3D11%5C%5CP%28Do-Gooders%29%3D%5Cfrac%7B5%7D%7B11%7D%20%3D0.4545)
There's a 0.4545 or 45% probability that it was donated by the Do-Gooders.
Answer: the last one, 31.6
Hello :
z = - 4 - <span>√2 i
</span><span>|z| = </span>√((-4)²+(√2)²) =√(16+2)=√18=3 √2
It is easier to create a probability table.
FOUND NOT FOUND TOTAL
REGION 1 0.70 0.30 1
REGION 2 0.40 0.60 1
REGION 3 0.30 0.70 1
The probability that during the search, the plane is not found in region 1 is 0.30. (1 - 0.70)
Answer:
x =42
Step-by-step explanation:
x and 138 are same side interior angles. Same side interior angles are supplementary when the lines are parallel
x+138 = 180
x = 180-138
x =42