Review Statistics and Probability

Find the z-score, given the population mean of 30, standard deviation of 5, X=23

Ordinal level is under the qualitative variable

Find the area that corresponds to 2.62.

Find the z-score, given the population mean of 25, standard deviation of 4, X=35

a probability distribution is often called the expected value of the distribution.

The order and the distance between the variables can be known. Its limitation is it has no“true zero

If the experiment is rolling a two die. How many is the sample space?

Find the z-score, given the population mean of 30, standard deviation of 5, X=43

Find the area that corresponds to 1.19.

often represented as a measure of risk or variability/dispersion of a distribution.

Data set obtained in the sample

describes a symmetrical plot of data around its mean value.

The tails of the curve flatten out indefinitely along the horizontal axis but never touch it

67% of the data falls within one standard deviation of the mean.

1.The sum of the probabilities of all values of the random variable must be equal to 10.

Result that can each of the data of the study

The type of data, which are a certain characteristic of the population

The area under the curve is 0.

Find the z-score, given the population mean of 25, standard deviation of 4, X=14

A Qualitative variables expressed by quality and not by numbers