The normal curve with a mean of O and standard deviation of 1 is called
a. standard normal curve.
c. the emperical rule.
b. a random variable.
d. the z-value.
Please select the best answer from the choices provided
B
O
D

a) Standard Normal curve

Step-by-step explanation:

Characteristics of Normal distribution:-

The Normal curve is bell shaped and symmetrical about the line x=μArea under the Normal curve is unitymean , median and mode of the distribution is coincideThe points of in flexion of the curve are at x =μ±σThe Population two parameters are mean 'μ' and standard deviation 'σ'

The Normal distribution for mean 'μ'=0 and standard deviation 'σ'=1 is Known as Standard  Normal distribution

The major difference is that a histogram is only used to plot the frequency of score occurrences in a continuous data set that has been divided into classes, called bins.  bar charts, on the other hand, can be used for a great deal of other types ofvariables  including  ordinal  andnominal  data sets.