If Z is a standard Normal variable what is P(-0.4

Q: About % of the area under the curve of the standard normal distribution is between z = 1.792 and z =…

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Q: Let Z be a standard normal variable.  P(Z<_c)=0.2119

A: Given: Z is a standard normal variable P(Z ≤ c ) = 0.2119

Q: The area under the standard normal curve between z = -1.12 and z = 1.12 is 0.7372 0.3643 -0.3686…

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Q: Let Z be a standard normal variate such that P(aa).

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Q: About w% of the area under the curve of the standard normal distribution is between z=-1.302 and…

A: standard normal curveX~N(0,1)μ=0σ=1we have to find out the p(-1.302&lt;Z&lt;1.302)=?

Q: Suppose you draw an observation (x = 91) from non-std normal distribution, X~N(109,14). We can…

A: Given  X~N (109,14) x = 91 μ=109 σ=14 Find the z score (z)=?

Q: Which proportion of a normal distribution is located between z = 0 and z = +1.50?

A: Solution: Here, it is needed to find the proportion of a normal distribution is located between z=0…

Q: Which of the following is not true about the Normal curve? Select one or more: U A. The total area…

A: Option C and D are the correct answers.     The normal curve has only one mode, so option B is True,…

Q: Zo 2. Suppose Zo, Z1, Z2, Zz are independent standard normals. Let X Is X t-distributed? Why? If…

A: Let us assume X is a random variable following standard normal distribution and Y is a random…

Q: (b) Find the area under the standard normal curve that lies between 2-2.27 and 2-1.98. The area…

A: Standardized z-score:   The standardized z-score represents the number of standard deviations the…

Q: Suppose that X1,..., X, is a random sample from the Normal distribution N(0,0²) with parameter o >…

A: Solution

Q: The area between z=−0.8 and z=1.5 under the standard normal curve is

A: We have to find  The area between z=−0.8 and z=1.5

Q: the area between z = -1.1 and z = 1.2 under the normal standard curve is

A: the area between z = -1.1 and z = 1.2 under the normal standard curve is

Q: If X-Binomial (50, 0.2), then the normal approximation to P( 10< x <12) is closest to O a. 0.2305 O…

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Q: Suppose that Xhas a normal distribution, Find E[ekx].

A: Solution

Q: Suppose you draw an observation (x = 136) from non-std normal distribution, X~N(134,13). We can…

A: Answer:- Suppose you draw an observation (x = 136) from non-std normal distribution, X~N(134,13).…

Q: 1. Between 2-0 and z-149 2. To the right of z138 3. To the left of z-2.04

A: Given that  1. Between z=0 and z=1.49 The normal distribution graph as follows P(0&lt;z&lt;1.49)…

Q: 1.) For the standard normal distribution, find The area within one standard deviation(|z|<1). Your…

A: Given : Standard normal variable Z Z~N(0,1)Mean=0 Standard deviation (sd)=1

Q: About % of the area under the curve of the standard normal distribution is between z=−1.413 and…

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Q: The area between Z= -1.2 and Z= 1.4 under a standard normal curve is?

A: The objective is to find the area between Z= -1.2 and Z= 1.4 under a standard normal curve.   That…

Q: How to get area between z and a z in a normal curve? specifically

A: To find the area between two z-scores we will use subtraction. First we will find the area to the…

Q: The area between z=−1.1 and z=1.5 under the standard normal curve is nothing

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Q: About % of the area under the curve of the standard normal distribution is outside the interval…

A: Note: this probability value calculated from standard normal distribution table

Q: Suppose you draw an observation (x = 100) from non-std normal distribution, X~N(101,14). We can…

A: The mean is 101 and the standard deviation is 14.

Q: About % of the area under the curve of the standard normal distribution is between z = − 2.266 and z…

A: % of the area under the curve of the standard normal distribution is betweenz = − 2.266 and z =…

Q: Suppose X ∼ N(5,32). What is P(X ≤ 8) in terms of the standard normal variable Z ?

A: given information:  X ∼ N(5,32) that is  μ=5σ=32 we wants to find P(X ≤ 8) P(X ≤ 8)=P(x-μσ≤8-532)…

Q: Find z such that 64% of the standard normal curve lles between and (Round your answer to two decimal…

A: It is given that the area under the standard normal curve is 64%.

Q: Find the area under the standard normal distribution curve between  =z −1.47  and  =z 1.34 .

A: It is needed to find the area under the standard normal distribution curve between z = –1.47 and z =…

Q: Find the z -value such that 75% of the standard normal curve lies between -z and z.

A: Given that 75% of the standard normal curve lies between  ̶ z and z.   That is,

Q: Suppose you draw an observation (x = 54) from non-std normal distribution, X~N(83,10). We can…

A:

Q: Let x be a continuous random variable that has a normal distribution with a mean of 80 and a…

A: GivenMean(μ)=80standard deviation(σ)=12

Q: If X-Binomial (50, 0.2), then the normal approximation to P( 10< X < 12) is closest to a. 0.2392 b.…

A:

Q: Suppose you draw an observation (x = 211) from non-std normal distribution, X~N(195,18). We can…

A: The z-score of a random variable x is defined as follows: z = (x – µ)σ. Here, µ and σ are the mean…

Q: Suppose you draw an observation (x = 115) from non-std normal distribution, X~N(105,13). We can…

A: given data  x = 115 X~N(105,13) so,μ=105,σ=13 we have to find standardized score (Z) = ?

Q: The area between z=−1.5 and z=1.4 under the standard normal curve is ______

A:

Q: Giventhat Z is a standard normal variable, the value z for which P(Z &lt; z)="0.2580" is=""…

A: The probability value is 0.2580.

Q: Let Z has a standard normal distribution, then P (Z=0) = 0.5 ylgn O ihs O

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Q: Assume that z-scores are normally distr If P( – b < z < b) = 0.4488, find b.

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Q: Suppose you draw an observation (x = 116) from non-std normal distribution, X~N(142,15). We can…

A: here given,   X~N(142,15) so,μ=142,σ=15   x=116     we need to find z value at x=116

Q: The area between Z= -1.1 and Z= 0.7 under the standard normal curve is?

A: The area between Z= -1.1 and Z= 0.7 under the standard normal curve is obtained as follows:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.