Answer:
P(first marble will be green and the second will be green as well)= 5/22
Step-by-step explanation:
A goblet contains 2 red marbles, 6 green marbles, and 4 blue marbles.
Total number of marbles= 2+6+4
=12
P(first marble is green)=no. of green marbles/total number of marbles
= 6/12
= 1/2
P(second marble is green and we didn't put the first marble back)
=no. of green marbles left/total marbles left
= 5/11
Hence, P(first marble will be green and the second will be green as well)
=
= 5/22
Answer:
The margin of error of his experiment is of 0.1074.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
z is the z-score that has a p-value of 
.
The margin of error is of:
30 M & M's from a bag, and 3 of them are green.
This means that 
Standard 95% confidence level
So 
, z is the value of Z that has a p-value of 
, so 
.
Margin of error:
The margin of error of his experiment is of 0.1074.
34 to the sqaure root of 3 units? 51 is the height
Answer:
y = 58 ( 1-0.07)^8 so y = 32.46
Step-by-step explanation:
Answer:
x = -2
Step-by-step explanation:
x^2 - 3x - 10 when we factorize equals
(x + 2) (x - 5)
3x^2 + 5x - 2 when we factorize equals
(3x - 1) (x + 2)
x + 2 is the common term and when we put the 2 on the other side of the equation we get x = -2
