For a standard normal distribution, which of the following variables always equals 0?

Asked by maham237 @ 25/12/2020 in Mathematics viewed by 351 People

Answered by maham237 @ 25/12/2020

In a standard normal distribution, the mean will always be equal to 0.

Furthermore, the definition of a standard normal distribution is a normal distribution in which the mean is 0 and the standard deviation is equal to 1. Take note that standard normal distribution is a type of normal distribution and not all normal distributions have the same mean and standard deviation.

For a standard normal distribution, which of the following expressions must always be equal to 1?

Asked by maham237 @ 23/12/2020 in Mathematics viewed by 431 persons

Which of the following probabilities is the greatest for a standard normal distribution?

Asked by maham237 @ 02/12/2020 in Mathematics viewed by 400 persons

a. p(-1.5≤z≤-0.5) b. p(-0.5≤z≤0.5) c. p(0.5≤z≤1.5) d. p(1.5≤z≤2.5)

With which normal distribution is the standard normal curve associated

Asked by admin @ 28/10/2021 in Mathematics viewed by 290 persons

What is the difference between a standard normal distribution and a nonstandard normal distribution? Choose the correct answer below. A. The standard normal distribution has a standard deviation that is …

Find the mode of the following frequency distribution 0 10

Asked by admin @ 03/08/2021 in Math viewed by 298 persons

find the mode of the following frequency distribution. 0-10 10- 20 20-30 30-40 40-50 50-60 60-70 with frequencies 8 , 10,10 ,16 ,12 ,6, 7

How to find the indicated probability for normal distribution variable

Asked by admin @ 08/11/2021 in Mathematics viewed by 295 persons

G let z be a random variable with a standard normal distribution. find the indicated probability. p(z ≤ −0.27)

Which of the following accounts has a normal debit balance

Asked by admin @ 26/11/2021 in Business viewed by 377 persons

Which accounts have a normal credit balance? choose all answers that are correct A) Supplies B) Accounts Payable C) Cash D) Insurance E) Capital F) Sales

Which of the following accounts normally has a debit balance

Asked by admin @ 26/11/2021 in Business viewed by 329 persons

For the following, mark a "D" if the following account normally has a debit balance and mark a "C" if the following account normally has a credit balance. 1. Notes …

How to find the area under the standard normal curve

Asked by admin @ 22/11/2021 in Mathematics viewed by 285 persons

Using the standard normal distribution tables, the area under the standard Normal curve corresponding to -0.5 < Z < 1.2 is:____________- A) 0.2815. B) 0.3085. C) 0.8849. D) 0.5764.

How to find the standard deviation of a random variable

Asked by admin @ 28/10/2021 in Mathematics viewed by 302 persons

Consider the discrete random variable X given in the table below. Calculate the mean, variance, and standard deviation of X . Also, calculate the expected value of X . Round …

Find the standard deviation of the following data

Asked by admin @ 31/08/2021 in Math viewed by 361 persons

Compute standard deviation for the following data. 21 12 23 12 14 15 16 19 20 25

The mean of the following distribution is 18

Asked by admin @ 31/08/2021 in Math viewed by 358 persons

The mean of following distribution is 18 .find the frequency f of the class 19 and 21

The following frequency distribution gives the monthly consumption

Asked by admin @ 26/08/2021 in Math viewed by 331 persons

The following frequency distribution gives the monthly consumption of electricity of 68 consumers of a locality. Find the median, mean and mode of the data and compare them. Monthly consumption …