Question

In a standard normal distribution, the probability that Z is less than zero is Multiple Choice...

In a standard normal distribution, the probability that Z is less than zero is

Multiple Choice

  • -0.5

  • 0.0

  • 0.5

  • 1.0

For the standard normal probability distribution, the total area under the curve is

Multiple Choice

  • 0.0

  • 0.5

  • 1.0

  • 3.0

The random variable x is known to be uniformly distributed between 50 and 100. The probability of x having a value between 70 to 95 is

Multiple Choice

  • .25

  • .50

  • .75

  • 1.00

x is a normally distributed random variable with a mean of 24 and a standard deviation of 6. The probability that x is smaller than 12 is

Multiple Choice

  • .0228.

  • .0076

  • .9772

  • .9824

x is a normally distributed random variable with a mean of 10 and a standard deviation of 2. The probability that x is greater than 12 is

Multiple Choice

  • 0.1587

  • 0.4602

  • 0.5398

  • 0.8413

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A z-value Multiple Choice is the standard deviation for the standard normal probability distribution is a...
A z-value Multiple Choice is the standard deviation for the standard normal probability distribution is a measure of how many standard deviations the mean is from the median is the difference of the mean and the probability of z is a measure of how many standard deviations an observation is from the mean
What is the probability that a standard normal random variable will be between ?2 and 2?...
What is the probability that a standard normal random variable will be between ?2 and 2? A) .4772 B) .0228 C) .9772 D) .9544
Assume that X has a normal distribution, and find the indicated probability. The mean is μ...
Assume that X has a normal distribution, and find the indicated probability. The mean is μ = 15.2 and the standard deviation is σ = 0.9. Find the probability that X is between 14.3 and 16.1. Group of answer choices 0.6826 0.8413 0.3413 0.1587
38. If a population is not normally distributed, the distribution of the sample means for a...
38. If a population is not normally distributed, the distribution of the sample means for a given sample size n will A. take the same shape as the population                        B. approach a normal distribution as n increases C. be positively skewed D. be negatively skewed E. none of the above 39. A random sample of 66 observations was taken from a large population. The population proportion is 12%. The probability that the sample proportion will be more than 17% is...
A: Let z be a random variable with a standard normal distribution. Find the indicated probability....
A: Let z be a random variable with a standard normal distribution. Find the indicated probability. (Round your answer to four decimal places.) P(z ≤ 1.11) = B: Let z be a random variable with a standard normal distribution. Find the indicated probability. (Round your answer to four decimal places.) P(z ≥ −1.24) = C: Let z be a random variable with a standard normal distribution. Find the indicated probability. (Round your answer to four decimal places.) P(−1.78 ≤ z...
2. Let the random variable Z follow a standard normal distribution, and let z1 be a...
2. Let the random variable Z follow a standard normal distribution, and let z1 be a possible value of Z that is representing the 10th percentile of the standard normal distribution. Find the value of z1. Show your calculation. A. 1.28 B. -1.28 C. 0.255 D. -0.255 3. Given that X is a normally distributed random variable with a mean of 52 and a standard deviation of 2, the probability that X is between 48 and 56 is: Show your...
2.)Assume random variable Z follows standard normal distribution; find the value of the following probabilities. P(-1<Z<1)...
2.)Assume random variable Z follows standard normal distribution; find the value of the following probabilities. P(-1<Z<1) 3.)Assume random variable Z follows standard normal distribution; find the value of the following probabilities. P(0<Z<1) 4.)Assume random variable Z follows standard normal distribution; find the value of the following probabilities. P(Z>2) 5.)The natural log of growth of yucca tree is approximately normally distributed with mean of 0.053 mm and standard deviation 0.03mm. Determine the probability that a yucca tree has growth less than...
__________ For a continuous random variable x, the area under the probability distribution curve between any...
__________ For a continuous random variable x, the area under the probability distribution curve between any two x-values is always _____. Greater than 1    B) less than zero    C) equal to 1    D) in the range zero to 1, inclusive _________For a continuous random variable x, the total area under the probability distribution curve of x is always ______? Less than1          B) greater than 1              C) equal to 1                      D) 0.5 ___________ The probability that a continuous random variable x...
1. A continuous random variable is normally distributed. The probability that a value in the distribution...
1. A continuous random variable is normally distributed. The probability that a value in the distribution is greater than 47 is 0.4004. Find the probability that a value in the distribution is less than 47. 2. A continuous random variable is normally distributed. The probability that a value in the distribution is less than 125 is 0.5569. Find the probability that a value in the distribution is greater than 125. 3. A random variable is normally distributed with mean 89.7...
In a positively skewed distribution: a. the median is less than the mean. b. the median...
In a positively skewed distribution: a. the median is less than the mean. b. the median equals the mean. c. the median is larger than the mean. d. the mean can be larger or smaller than the median. What is the mean of x, given the function below? f(x) =(1/10) e-x/10     x 0 a. 100 b. 1,000 c. 10 d. 0.10 The starting salaries of individuals with an MBA degree are normally distributed with a mean of $40,000 and a...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT