Answer: 0.0475
Step-by-step explanation:
Let x = random variable that represents the number of a particular type of bacteria in samples of 1 milliliter (ml) of drinking water, such that X is normally distributed.
Given:
The probability that a given 1-ml will contain more than 100 bacteria will be:
∴The probability that a given 1-ml will contain more than 100 bacteria
0.0475.
Answer:
C.
Step-by-step explanation:
p(x)=sin(x) is an odd function since sin(-x)=-sin(x).
q(x)=cos(x) is an even function since cos(-x)=cos(x).
r(x)=tan(x) is an odd function since tan(-x)=-tan(x).
s(x)=csc(x) is an odd function since csc(-x)=-csc(x).
So the only contender seems to be C.
Let's check. To check we have to plug in (-x) in place of (x) and see if we get the same function back since we are looking for an even function.
Replace (x) with (-x):
since cosine is even; that is cos(-u)=cos(u) where u in this case is
.
So f is even.
Answer:
Do not reject
Step-by-step explanation:
From the question we are told that
Sample size
Sample size
Sample proportion 1
Sample proportion 2
95% confidence interval
Generally for 95% confidence level
Level of significance
Therefore
Generally the equation for confidence interval between is mathematically given as
Therefore
Confidence interval is
Conclusion
Given the confidence interval has zero
Therefore do not reject