a. Roughly what percentage of z-scores are between -2 and 2? b. Roughly what percentage of z-scores are between -3 and 3? c. Roughly what percentage of z-scores are between -1 and 1?
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
Help! All the options for all parts are the same: "almost all, 95%, 68%, or 50%"
Hi the question have more than 3 parts. As per the guidelines I am obliged to answer first 3 parts only.
From the normal curve it can be seen that 95% of the area or z-scores are between -2 and 2.
So, the correct answer is 95%
From the normal curve it can be seen that almost all of the area or z-scores are between -3 and 3.
So, the correct answer is almost all
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