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18. The mean and variance of binomial distribution are 4 and 4/3 respectively, plX 2 1]
a
with
the
pdf
of
19. Parameters of Binomial Distribution are n=5 and p=0.45, P[0<x<3] =
20. Suppose
random variable Х is continuous
2x
0<x<1
f(x) = 1
0, otherwise
a. Check f(x) is a pdf? (1 pts)
b. Find p (x >0.5)? (2 pts)
c. Calculate E(x) and Var(x)? (1 pt)
kereise 2
1. A secretary makes 2 errors per page on the average. What is the probability that on the
next page she makes
a) 4 or more errors?​

answer: the first one

step-by-step explanation: use a calculator and divide the minutes by the dollars.

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )

the correct answer is b. negative exponential growth.

step-by-step explanation:

you can tell it's an exponential function because it decreases rapidly then levels out and never touches the x-axis.

it is negative because the y-axis decreases as the x-axis increases.

therefore it is a negative exponential growth graph.

hope i !