. Let X be a binomial random variable with number of trials 100 and expected value 20. What is the probability of success of X?

Question description

  1. The following is suppose to represent probability distribution table. What is the missing value?

X

P(X)

3

0.4

5

0.5

9

?

  1. Find the expected value of X using the table below.

X

P(X)

0

0.4

1

0.3

─1

0.3

  1. If the standard deviation of a random variable is 5,what is its variance?

  2. Any normal distribution is

continuous

discrete

5.

some are discrete, some are continuous

a binomial distribution

6.

is Poisson distribution

  1. Let X be a binomial random variable with number of trials 100 and expected value 20. What is the probability of success of X?

  2. There are 17 blue, 5 green, and 3 red balls in a jar. We randomly select a ball and return it back to the jar. We repeat it 8 times. To find the probability of the event that every time we get a green ball we need to use the following distribution:

binomial with number of trials 8 and probability of success 0.2

binomial with number of trials 25 and probability of success 0.5

binomial with number of trials 5 and probability of success 0.2

binomial with number of trials 8 and probability of success 0.8

binomial with number of trials 8 and probability of success 1/3

Poisson Distribution with average 5

Poisson Distribution with average 8

binomial with number of trials 25 and probability of success 0.2

Strawberries

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