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the​ _______ of a discrete random variable represents the mean value of the outcomes.

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Karol A.
Karol A.Lv10
11 Mar 2021
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Related textbook solutions

Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208

Related questions

1. What is a discrete probability distribution? What are the two conditions that determine a probability distribution? What is a discrete probability distribution? Choose the correct answer below 

A. A discrete probability distribution exclusively lists probabilities O

B. A discrete probability distribution lists each possible value a random variable can assume. C. A discrete probability distribution lists each possible value a random variable can assume. together with its probability.

D. None of the above

2. What are the two conditions that determine a probability distribution? Choose the correct answer below

A. The probability of each value of the discrete random variable is between 0 and 1, inclusive, 

B. The probability of each value of the discrete random variable is between 0 and 1, inclusive.

C. The probability of each value of the discrete random variable is greater than 0 and less than

D. The probability of each value of the discrete random variable is greater than 0 and less than and the sum of all the probabilities is 1. and the sum of all the probabilities can be any amount. 1, and the sum of all the probabilities is 1. 1, and the sum of all the probabilities can be any amount.

A probability distribution for all possible values of a sample statistic is known as
A.normal distribution
B. uniform distribution random c.sampling sampling distribution
D.sampling distribution

A function of a random variable which describes the probability that random variable is
Select one
A.Probability distribution function
B. Discrete random variable
C. Sampling distribution function
D. Continuous random variable

Consider the normal distribution the vanability is increased and the height of the curve is decreased for the
A. Larger value of standard deviation
B. Smaller value of mean
C. Smaller valie of stabdard deviation
D. Larger value of mean

The sampling destination of the sample mean is a distribution of
A. Sample statistic /estimator
B. individual population values
C. individual sample values
D. Population parameters


The sampling distribution of the mean is distribution of
A. Sample statistic
B. Population parameters
C. individual population values
D. individual sample values

A  Compute and interpret the mean of the random variable x

B Compute the standard deviation of the random variable x.

C. What is the probability that a randomly selected student has a parent involved in three activities?

D  What is the probability that a randomly selected student has a parent involved in three or four activities?

E.

In the following probability distribution, the random variable x represents the number of activities a K to the 5th-grade student is involved in.

Complete parts (a) through (f) below.

   x           0              1               2               3               4

P(x)      0.299       0.145         0.234        0.053         0.269

(a) Verify that this a discrete probability distribution.

 

 

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