107_6.2_notes_quizizz

What is the probability distribution called that represents the number of successes in a series of trials?

• Normal distribution

• Binomial distribution

• Poisson distribution

• Uniform distribution

Fill in the blank: A random variable that represents the number of successes in a series of trials has a ________ distribution.

• A) Normal

• B) Binomial

• C) Poisson

• D) Exponential

Fill in the blank: The outcome of each trial in a binomial distribution must be either 'success' or ________.

• 'failure'

• 'win'

• 'loss'

• 'draw'

Fill in the blank: In a binomial distribution, the number of trials must be ________.

• Variable

• Fixed

• Random

• Infinite

In a binomial distribution, if the probability of success is 0.3 and the number of trials is 15, what is the probability that more than one person uses Pinterest?

• 0.382

• 0.219

• 0.150

• 0.250

The variance of a binomial random variable is given by ____.

• σ² = np(1-p)

• σ² = np

• σ² = n/p

• σ² = n+p

What is the standard deviation formula for a binomial random variable?

• σ = √(np(1-p))

• σ = np

• σ = n/p

• σ = n+p

Refer to Example 6.13. Find the standard deviation of the number of repairs required for a car during the warranty period.

• 1.785

• 2.000

• 2.500

• 3.000

Refer to the "Check Your Understanding" under Example 6.13. What is the probability that a plant has green pods?

• 0.75

• 0.50

• 0.25

• 0.10

Which of the following is NOT a step in computing binomial probabilities?

• Identifying the number of trials

• Identifying the probability of success

• Using the 'binompdf' or 'binomcdf' command

• Calculating the median.