Answer:
1. 68%
2. 50%
3. 15/100
Step-by-step explanation:
Here, we want to use the empirical rule
1. % waiting between 15 and 25 minutes
From what we have in the question;
15 is 1 SD below the mean
25 is 1 SD above the mean
So practically, we want to calculate the percentage between;
1 SD below and above the mean
According to the empirical rule;
1 SD above the mean we have 34%
1 SD below, we have 34%
So between 1 SD below and above, we have
34 + 34 = 68%
2. Percentage above the mean
Mathematically, the percentage above the mean according to the empirical rule for the normal distribution is 50%
3. Probability that someone waits less than 5 minutes
Less than 5 minutes is 3 SD below the mean
That is 0.15% according to the empirical rule and the probability is 15/100
Answer:
a) it is not a binomial, it is hypergeometric distribution.
Step-by-step explanation:
a) Four hundred different voters in a region with two major political parties, A and B, are randomly selected from the population of 3000 registered voters.
it is not a binomial because the probability of succes changes between one trial and another one, so the trials are not independent.
1 g/mL ---------- 8.3454 lbs
1.09 g/mL ------ lbs
Ibs = 1.09 x 8.3454 / 1
Ibs = 9.09 / 1
= 9.09 Ibs
hope this heps!
The equation used in this problem is <span>f(x)=x^4−x^3−2x−4
The factored version is F(x)=(x-2)(x+1)((x^2)+2)
-I hope this is the answer you are looking for, feel free to post your questions here on brainly in the future.</span>
Answer:
Option A (0,a)
Step-by-step explanation:
we know that
Is a exponential function
where
a is the initial value
b is the base
Remember that
The initial value is the value of the function when the value of x is equal to zero (y-intercept)
therefore
For x=0
The y-intercept is the point (0,a)
