3.4 Probability Distribution

What is sample set?

• an experiment of some event

• a set of all the possible outcomes of an experiment

The binomial distribution depends on which of the following?

• 1. Mean and standard deviation

• 1. Sample size and probability of success

• 1. Standard deviation and number of successes

• 1. Mean and probability of success

The normal distribution depends on which of the following?

• 1. Mean and standard deviation

• 1. Sample size and probability of success

• 1. Standard deviation and number of successes

• 1. Mean and probability of success

The mean of binomial distribution is ___

• nq

• pq

• np

• npq

Standard deviation of binomial distribution is ___

In binomial distribution each trial results in ______ possible outcomes.

• one

• two

• three

• four

20% Of the bulbs produced are defective. What is probability that 2 bulbs out of 4 bulbs are defective?

• 0.1536

• 0.0983

• 0.0061

The average percentage of failure in a certain examination is 40.

What is the probability that out of a group of 6 candidates, at least 4 passed in examination? 

• 0.5443

• 0.4976

• 0.31104

• 0.1866

For the binomial distribution with n=20,p=0.35, Standard deviation is ___

• 4.55

• 2.133

• 0.65

• 7

Normal Distribution is applied for _______

• Continuous Random Distribution

• Discrete Random Distribution