Answer:
B. 1/56
Explanation:
There are 8 different marbles. In the first draw, you have a one out of 8 chance of getting the red. In the second draw, there are 7 marbles remaining, so a one out of 7 chance of drawing a white marble. To find the total probability of drawing the red and then white marble, we multiply the probabilities if each draw.
(1/8)*(1/7)=1/56
Answer:
1/4
Step-by-step explanation:
-1 - 3 = -4, 2 - 3 = -1, swap -4/-1 and because they're both negative their positive, you get 1/4
Answer:
Step-by-step explanation:
Information given
represent the sample mean for the content of active ingredient
represent the sample standard deviation for the sample
sample size
represent the value that we want to test
t would represent the statistic
represent the p value for the test
System of hypothesis
We need to conduct a hypothesis in order to check if the true mean for the active agent is at least 20 mg, the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
The statistic would be:
(1)
Now we can calculate the statistic:
P value
The degrees of freedom are calculated like this:
Since is a one left tailed test the p value would be:
Answer:
c
Step-by-step explanation:
I think its c but I could be wrong
Answer:
GCF=1
Step-by-step explanation:
Lets factor both numbers:
the factors of 8:
1,2,4,8
the factors of 13:
1,13
The largest number in common is 1
