For any probability distribution, the probability of any x-value occurring within any given range is equal...
For any probability distribution, the probability of any x-value occurring within any given range is equal to the area under the distribution and above that range.
True False
Homework Answers
The probability of any x-value occurring within any given range is equal to the area under the distribution and in that range.
Mathematically we can write it as
Also, we can show it graphically as:
Hence the answer is False
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For any probability distribution, the probability of any x-value
occurring within any given range is equal...
What proportion of the data from a normal distribution is within two standard deviations from the mean?
QUESTION 7 What proportion of the data from a normal distribution is within two standard deviations from the mean? A. 0.4772 B. 0.9544 C. 0.3413 D. 0.6826 QUESTION 8 The total area under the curve f(x) of any continuous random variable x is equal to one. True False QUESTION 9 Determine the value of zo which satisfies P(z > z0) = 0.7995.
Which of the following statements is not a property of the normal probability distribution?
Which of the following statements is not a property of the normal probability distribution?A. The normal distribution is symmetricB. Exactly two-thirds of all possible observed values of the random variable x are within plus or minus one standard deviations of the population meanC. The mean, median and mode are equalD. The area under the normal curve to the right of the mean is equal to the area under the normal curve to the left of the meanE. All of the...
Write code that when you are given the range and probability distribution of a random variable...
Write code that when you are given the range and probability distribution of a random variable X. (i.e X ="the number of heads showing on 2 flipped fair coins": range = (0,1,2) probability distribution: [.25, .5, .25] Such that the code returns the expected value, standard deviation, and variance of the random variable . thanks!
The alternate hypothesis is a statement that the value of a population parameter (such as proportion,...
The alternate hypothesis is a statement that the value of a population parameter (such as proportion, mean, or standard deviation) is equal to some claimed value. True O False A Uniform probability distribution is applicable to the scenarios where the set of possible outcomes can take on values in a continuous range (e.g. real numbers), such as the temperature on a given day." True False A larger standard deviation indicates that the data is further away from; hence, the normal...
The cumulative probability distribution shows the probability 10 O A. of two or more events occurring at once O...
The cumulative probability distribution shows the probability 10 O A. of two or more events occurring at once O B. that a random vaniable less than or equal to a particular value. O c. of all possible events occurring O D. that a random variable takes on a particular value given that another event has happened 11. Analyzing the effect of minimum wage changes on teenage employment across the 48 contiguous U.S. states from 1980 to 2004 is an example...
Within a normal distribution, the sample mean is equal to 3.0. At the 43.32% point within the distribution, the critical value is equal to ______ . Thus the critical boundary will be equal to +_______...
Within a normal distribution, the sample mean is equal to 3.0. At the 43.32% point within the distribution, the critical value is equal to ______ . Thus the critical boundary will be equal to +_________ and -_______.
For the standard normal distribution shown on the right, find the probability of z occurring in...
For the standard normal distribution shown on the right, find the probability of z occurring in the indicated region. 0.61 -0.93 z A normal curve is over a horizontal z-axis. Vertical line segments extend from the horizontal axis to the curve at negative 0.93 and 0.61. The area under the curve between negative 0.93 and 0.61 is shaded. The probability is nothing. (Round to four decimal places as needed.)
18. The Complement rule states that the probability of an event not occurring is A. equal...
18. The Complement rule states that the probability of an event not occurring is A. equal to one minus the probability it will occur. B. equal to one minus the probability it will not occur. C. equal to 0.0 D. equal to 1.0 E. None of the above
14. TRUE or FALSE? If X is any normal distribution, then about 95% of all observations...
14. TRUE or FALSE? If X is any normal distribution, then about 95% of all observations from X will fall within two standard deviations of the mean. 15. TRUE or FALSE? The normal quantile value 0-1(0.025) = -1.96. 16. TRUE or FALSE? If X ~ Nor(u, o?), then Pr(-1 < X-< 1) = 0.6826.
Answer please for test reveiw Name: 1. The cumulative probability distribution shows the probability: (a) that a ra...
Answer please for test reveiw
Name: 1. The cumulative probability distribution shows the probability: (a) that a random variable is less than or equal to a particular value. (b) of two or more events occurring at once. (c) of all possible events occurring. (d) that a random variable takes on a particular value given that another event has happened 2. To standardize a variable you (a) subtract its mean and divide by its standard deviation. (b) integrate the area below...
The alternate hypothesis is a statement that the value of a population parameter (such as proportion, mean, or standard deviation) is equal to some claimed value. True O False A Uniform probability distribution is applicable to the scenarios where the set of possible outcomes can take on values in a continuous range (e.g. real numbers), such as the temperature on a given day." True False A larger standard deviation indicates that the data is further away from; hence, the normal...
The cumulative probability distribution shows the probability 10 O A. of two or more events occurring at once O B. that a random vaniable less than or equal to a particular value. O c. of all possible events occurring O D. that a random variable takes on a particular value given that another event has happened 11. Analyzing the effect of minimum wage changes on teenage employment across the 48 contiguous U.S. states from 1980 to 2004 is an example...
14. TRUE or FALSE? If X is any normal distribution, then about 95% of all observations from X will fall within two standard deviations of the mean. 15. TRUE or FALSE? The normal quantile value 0-1(0.025) = -1.96. 16. TRUE or FALSE? If X ~ Nor(u, o?), then Pr(-1 < X-< 1) = 0.6826.
Answer please for test reveiw
Name: 1. The cumulative probability distribution shows the probability: (a) that a random variable is less than or equal to a particular value. (b) of two or more events occurring at once. (c) of all possible events occurring. (d) that a random variable takes on a particular value given that another event has happened 2. To standardize a variable you (a) subtract its mean and divide by its standard deviation. (b) integrate the area below...
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