Consider a standard normal random variable Z. Which of the following statements is NOT true? For...
Consider a standard normal random variable Z. Which of the following statements is NOT true?
|
For any value z, P(Z < z) = P(Z < -z). |
||
|
For any value z, P(Z < z) = P(Z < z). |
||
|
For any value z, P(Z < z) corresponds to the value of the c.d.f. of the standard normal distribution at Z = z. |
||
|
For any value z, P(Z < z) = 1 - |
Homework Answers
incorrect option is:
for any value z, P(Z < z) = P(Z < -z).
(since P(Z<z) =P(Z>-z))
Add Answer to:
Consider a standard normal random variable Z. Which of
the following statements is NOT true?
For...
If the random variable z is the standard normal score and a >0 is it true...
If the random variable z is the standard normal score and a >0 is it true that p ( z >a ) = p ( z < a ) ? Why pi r Why or What not? yes because normal distribution means is 0 and variance is 1. What is the property does the distribution have?
* Select all the True statements about the normal probability distribution.* a) The random variable takes...
* Select all the True statements about the normal probability distribution.* a) The random variable takes any value. b) The distribution has one mode and has positive skew c)The mean, median, and mode are equal. d) Standardizing an observation of any normal distribution allows the use of the standard normal (Z) distribution tables. e) The distribution has one mode and is bell shape. f) The area under the bell curve is 1 exactly. g) The random variable does not take...
Let Z be a standard normal random variable and (z) be the c.d.f. of Z. (a)...
Let Z be a standard normal random variable and (z) be the c.d.f. of Z. (a) Find the constant c such that Ф(c)-0162, (b) Find z03
Which of the following statements are TRUE? There may be more than one correct answer; select...
Which of the following statements are TRUE? There may be more than one correct answer; select all that are true. The standard deviation of a standard normal random variable cannot be 10. If Z is a standard normal random variable, P(Z < 0) = 0.5. The 30th percentile of the standard normal distribution is negative. A normal distribution could possibly have a mean and variance that are both equal to 1. If Z is a standard normal random variable, then...
Assume Z is a random variable with a standard normal distribution and c is a positive...
Assume Z is a random variable with a standard normal distribution and c is a positive number. If P(Z > c) = 0.25, then PC – c< < c) = 0.5. O True OFalse Exactly 50% of the area under the normal curve lies to the left of the mean. O True OFalse If X represents a random variable coming from a normal distribution and P(X < 5.2) = 0.5, then P(X > 5.2) = 0.5. O True O False
In a normal distribution, the mean corresponds to: Standard Score: z = Percentile: Which of the...
In a normal distribution, the mean corresponds to: Standard Score: z = Percentile: Which of the following statements are TRUE about the normal distribution? Check all that apply. A data value with z-score = -1.5 is located 1.5 standard deviations below the mean. The mean corresponds to the z-score of 1. The Empirical Rule only applies when a value is exactly 1, 2, or 3 standard deviations away from the mean. A z-score is the number of standard deviations a...
2. Random variable Z has the standard normal distribution. Find the following probabilities a): P[Z >...
2. Random variable Z has the standard normal distribution. Find the following probabilities a): P[Z > 2] b) : P[0.67 <z c): P[Z > -1.32] d): P(Z > 1.96] e): P[-1 <Z <2] : P[-2.4 < Z < -1.2] g): P[Z-0.5) 3. Random variable 2 has the standard normal distribution. Find the values from the following probabilities. a): P[Z > 2) - 0.431 b): P[:<] -0.121 c): P[Z > 2] = 0.978 d): P[2] > 2] -0.001 e): P[- <Z...
Which of the following statements are TRUE? There may be more than one correct answer; select all that are true. A...
Which of the following statements are TRUE? There may be more than one correct answer; select all that are true. A standard normal random variable cannot take on negative values. The normal distribution is symmetric about the mean mu. A normal distribution cannot have a negative mean. In a normal distribution, the mean and median are equal. If Z is a standard normal random variable, then P(Z > 41278) is very close to 0.
If Z is a random variable from a standard normal distribution and if P(Z>c)=0.36 than P(Z<-c)=0.64....
If Z is a random variable from a standard normal distribution and if P(Z>c)=0.36 than P(Z<-c)=0.64. True or false
Consider a standard normal random variable with μ = 0 and a standard deviation σ =...
Consider a standard normal random variable with μ = 0 and a standard deviation σ = 1. Find the following probabilities: a) P (Z <2.9) b) P (Z> 1.32) c) P (-2.72 <Z <2.72) d) P (Z <1.93)
Let Z be a standard normal random variable and (z) be the c.d.f. of Z. (a) Find the constant c such that Ф(c)-0162, (b) Find z03
Assume Z is a random variable with a standard normal distribution and c is a positive number. If P(Z > c) = 0.25, then PC – c< < c) = 0.5. O True OFalse Exactly 50% of the area under the normal curve lies to the left of the mean. O True OFalse If X represents a random variable coming from a normal distribution and P(X < 5.2) = 0.5, then P(X > 5.2) = 0.5. O True O False
2. Random variable Z has the standard normal distribution. Find the following probabilities a): P[Z > 2] b) : P[0.67 <z c): P[Z > -1.32] d): P(Z > 1.96] e): P[-1 <Z <2] : P[-2.4 < Z < -1.2] g): P[Z-0.5) 3. Random variable 2 has the standard normal distribution. Find the values from the following probabilities. a): P[Z > 2) - 0.431 b): P[:<] -0.121 c): P[Z > 2] = 0.978 d): P[2] > 2] -0.001 e): P[- <Z...
Most questions answered within 3 hours.
-
The convergence theory suggests:
that poorer countries will grow faster than rich ones.
all countries eventually...
asked 10 minutes ago -
how
many constitutional isomers are possible when
3-ethyl-4-methylhexane is monochlorinated ?
asked 4 minutes ago -
Please help with this Chemistry Gas Law Problem
A 25.0L Oxygen cylinder contains 3.70mols of O2...
asked 4 minutes ago -
1. The key regulatory enzyme of cholesterol synthesis is
A. HMG CoA synthase
B. HMG CoA...
asked 21 minutes ago -
3. For the small data set shown below, calculate the mean,
median, and mode by hand....
asked 27 minutes ago -
which is incorrect?
struct myStruct
{
int i;
double d;
};
class myClass
{
public:
int...
asked 1 hour ago -
A galvanic cell has an iron electrode in contact with 0.19
MFeSO4 and a copper electrode...
asked 31 minutes ago -
A solution prepared by dissolving 42.10g organic
compound in 105.4 benzene boils at 84.6C. Determine the...
asked 40 minutes ago -
this question on cell biology 4th edition chapter 20
1 describe cell polarity?
2 describe the...
asked 1 hour ago -
On the basis of the general solubility rules given in Table 7.1,
predict the identity of...
asked 37 minutes ago -
In python please..
Problem 4 (Tracking Statistics – Part 1)
Write a program that repeatedly asks...
asked 37 minutes ago -
The tee command reads its standard input until end-of-file,
writing a copy of the input to...
asked 43 minutes ago