How to find the indicated probability for normal distribution variable

Asked by admin @ 08/11/2021 in Mathematics viewed by 290 People

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

Answered by admin @ 08/11/2021

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How to find the middle 80 of a normal distribution

Asked by admin @ 22/11/2021 in Mathematics viewed by 379 persons

The distribution of heights for adult men in a certain population is approximately normal with mean 70 inches and standard deviation 4 inches. Which of the following represents the middle …

Events a and b are independent find the indicated probability

Asked by admin @ 02/08/2021 in Math viewed by 295 persons

Events A and B are independent. Find the indicated Probability. P(A) = 0.19 P(B) = P(A and B) = 0.09

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

Asked by maham237 @ 02/12/2020 in Mathematics viewed by 396 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)

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

Asked by maham237 @ 25/12/2020 in Mathematics viewed by 346 persons

The probability distribution of y, a discrete random variable, is given in the table. what is the expected value of y?

Asked by maham237 @ 03/01/2021 in Mathematics viewed by 301 persons

How to find the area under the standard normal curve

Asked by admin @ 22/11/2021 in Mathematics viewed by 280 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.

Find the mean and standard deviation of the sampling distribution

Asked by admin @ 22/11/2021 in Mathematics viewed by 280 persons

Compute the mean and standard deviation of the sampling distribution of the sample mean when you plan to take an SRS of size 49 from a population with mean 420 …

How to find the standard deviation of a sampling distribution

Asked by admin @ 10/11/2021 in Mathematics viewed by 357 persons

Compute the mean and standard deviation of the sampling distribution of the sample mean when you plan to take an SRS of size 49 from a population with mean 420 …

How do you find the height of a uniform distribution

Asked by admin @ 29/10/2021 in Mathematics viewed by 272 persons

A random variable X follows the continuous uniform distribution with a lower bound of −4 and an upper bound of 18. a. What is the height of the density function …

How to find mean and standard deviation of sampling distribution

Asked by admin @ 28/10/2021 in Mathematics viewed by 356 persons

Calculate the mean and the standard deviation of the sampling distribution of possible sample proportions for each combination of sample size (n) and population proportion (p).

How do you find the area under a normal curve

Asked by admin @ 28/10/2021 in Mathematics viewed by 283 persons

Find the area under the standard normal curve to the left of z = 0.49 and to the right of z = 2.05. Round your answer to four decimal places, …

With which normal distribution is the standard normal curve associated

Asked by admin @ 28/10/2021 in Mathematics viewed by 286 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 …