Find the proportion of the normal distribution that is associated with the following sections of a graph: • P (Z > +0.8o) Not Pass Mean • P (Z >-o.33) Pass Mean • P (Z <-o.50) Not Pass Mean

Q: Assume that the scores of a college entry exam are normally distributed with a mean of 400 and a…

A: Given,mean(μ)=400standard deviation(σ)=60

Q: Find the  z -score for which  85%  of the distribution's area lies to its right.

A: We want to find out Z-score for which   85%  of the distribution's area lies to its right.

Q: Find z so that 90% of the standard normal curve is between -z and z.  Choose the closest answer.

A: Solution: Let

Q: Let X follow a normal distribution with mean 5.3 and unknown standard deviation. If P(X < 11.6) =…

A: From the given information, let X follows a normal distribution with mean of 5.3 and standard…

Q: Suppose a normal distribution has 50%50% of its area falling to the left of x=30,x=30, and 25%25% of…

A: Given: 50% of its area to the left of  x=30 25% of its area to the right of x=38

Q: Use the graph of the uniform distribution to find the probability x is between 1 and 4. 0.2 y=P(x)…

A: q-1) given uniform distribution X~U(0,5) find P(1&lt;x&lt;4) = ?

Q: a)P(−0.83 1.67) c) The z-score for the standard normal distribution shown below.

A: We want to find a)P(−0.83 &lt; z &lt; 1.57) b)P(z &gt; 1.67) c) The z-score for the standard normal…

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

A: Solution

Q: For the standard normal curve, find the z-score that corresponds to the 7th decile

A: standard normal distribution Z~N(0,1) find z score correspond to 7th decile

Q: find the 80th percentile of a normal distribution where x=n(50,10)

A: Step 1:Find the 80th percentile of a normal distribution.X∼N(50,10)=X∼N(μ,σ)Step 2:Find the Z-score…

Q: Below is a graph of a normal distribution with mean u=-4 and standard deviation o= 2. The shaded…

A:

Q: A percentile is a collection of observations that are greater than some percentage of all…

A: The kth percentile implies the value, below which k of the total observations lie.

Q: Z-score boundaries that separate a normal ion as described in each of the following. niddle 30% from…

A: The standard normal variable z has mean 0 and standard deviation 1.

Q: You are given 1 or 2 z-score(s) and need to shade the area (-probability) corresponding to: P(z >…

A: We have given that the Z be the standard normal random variable that is Z ~ N( 0, 1 ).

Q: A normal distribution has mean u = 56 and standard deviation o = 20. Find and interpret the z-score…

A: X follows a Normal distribution with mean = 56 and S.D = 20 Then z=(x-mean)/SD = (x-56)/20…

Q: Suppose that x has a normal distribution with mean ? = 50 and standard deviation ? = 5. Find P(x >…

A:

Q: elow is a graph of a normal distribution with mean μ = 2 and standard deviation o=4. The shaded…

A: Suppose the variable of interest is x.

Q: Below is a graph of a normal distribution with mean u=-2 and standard deviation o= 2. The shaded…

A:

Q: Assume that X, the starting salary offer for anthropology majors, is normally distributed with a…

A: First, we need to calculate the Z-scores for the given salary amounts. The Z-score is a measure of…

Q: Calculating the Z-score is the last step when evaluating a normal distribution curve. O True O False

A: Normal distribution: 1. It is bell-shaped is a symmetrical continuous probability distribution  2.…

Q: Q9. The diagram is the distribution of the Standard Normal variate, Z. wwww w 0.5 0.4 0.3 .025 .025…

A: We have given that.   X~N( μ , ?^2 )   μ =0 , ? =1   Z-score =( x - μ )/?

Q: Use the graph of the labeled Normal Distribution to identify u and o. u= 0= Normal Curve -11 -8 -5…

A: Graph is given, We have to calculate Mean and standard deviation for the graph.

Q: Use Table A to find the proportion of the standard Normal distribution that satisfies each of the…

A: Standard normal distribution is a type of Normal distribution where the mean=0 and standard…

Q: Find the​ z-score that has 70.54% of the distribution's area to its left.

A:

Q: Suppose that x is normally distributed with a mean of 20 and a standard deviation of 15. What is P(x…

A: given data, normal distribution, μ=20σ=15p(X≥55.40)=?

Q: the mean is 146, and standard deviation is 35. A score of 181 is how many z-scores above the mean?

A:

Q: Use a table of cumulative areas under the normal curve to find the​ z-score that corresponds to the…

A: Z-score: The z-score value is a numerical measurement that describes a value of the relationship to…

Q: for a standard normal distribution, find the percentage of data that are between 3 standard…

A: The graph with percentages is,

Q: Below is a graph of a normal distribution with mean µ = -3 and standard deviation o=2. The shaded…

A: Population mean, Population standard deviation,

Q: Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and…

A:

Q: normal distribution has a mean of u=30 with o=5 if a vertical line is drawn through the distribution…

A:

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: The z-score:The z-score of a normally distributed random variable, X, with mean μ and standard…