If the area to the left of x in a normal distribution is 0.317, what is the area to the right of x? Answer: If the area to the right of æ in a normal distribution is 0.317, what is the area to the left of x?

Q: Identify the three values that CANNOT be associated with the mode in a standard normal distribution?…

A: Result:  For normal distribution Mean=median =mode

Q: 1. Find the areas under the normal curve. A. Right of z = 2.13 B. Left of z = -1.03 C. Right of z…

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Q: What percent of items lie within 2.20 standard deviations of the mean (a) in any distribution (using…

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Q: If the area to the left of x in a normal distribution is 0.2, what is the area to the right of x?…

A: Given The area to the left of x in a normal distribution is 0.2

Q: In a normal distribution, the range of values of x is from... A.minus infinity to infinity  B.-1…

A: It is needed to define the range of values of x for normal distribution.

Q: 1.Find each of the following using the standard normal curve (attached in last pages of the exam) or…

A: (1.A) Obtain the probability of area to the left of Z=–0.67.   Use TI-83 plus Calculator to obtain…

Q: Samples of size 50 are taken. Can you assume that the distribution for x is normal

A: The given sample size is 50.

Q: In a standard normal distribution the mean is always equal to? a. 0 b. 1 c. 10 d. 100

A: given data  standard normal distribution  so,Z~N(0,1)

Q: If the area to the left of x in a normal distribution is 0.842, what is the area to the right of x?…

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Q: A vertical line drawn through a normal distribution at z = -0.72 separates the distribution into two…

A: Given :  A vertical line drawn through a normal distribution at z = -0.72 separates the distribution…

Q: rea to the left of x in a normal distribution is 0.488, what is the area to the right of x?

A: Given that Area to the left of x in normal distribution is 0.488  and  Area to the right of x in…

Q: Let Z be a standard normal variable. Find that satisfies the following.?a.?(?>―?)=.9713

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Q: For the standard normal distribution, the area between z = -2.13 and z = 1.33, rounded to four…

A: Given: z is between -2.13and 1.33

Q: If the area to the left of x in a normal distribution is 0.589, what is the area to the right of x?…

A: Explanation for this is as follows; The shaded area in the following graph indicates the area…

Q: must be to the right of the mean is: In a nistogram, the proportion of the total area whio O A.…

A: Option a) is correct. exactly 0.5 if the distribution is symmetric and unimodal.

Q: If the area to the left of x in a normal distribution is 0.41, what is the area to the right of x?…

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Q: and σ=10, wh

A: Here it is given that-  Mean (μ) = 90 Standard deviation (δ) =  10 Let, X be a random variable which…

Q: If the area to the left of in a normal distribution is 0.27, what is the area to the right of a?…

A: It is given that the area to the one side of x in a normal distribution.

Q: Sketch a drawing and use the standard normal distribution table to answer the following questions:…

A: a. The area under the curve that lies to the left of z=-2.39 is, Pz<-2.39 Use the Standard Normal…

Q: If the area to the left of in a normal distribution is 0.796, what is the area to the right of x?…

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Q: For a standard normal distribution, given P(z < c)= approximately 16%. Find c. (Answer as an…

A: Given information- We have given a standard normal distribution- P (z &lt; c) = 16% P (z &lt; c) =…

Continuous Probability Distributions

Probability distributions are of two types, which are continuous probability distributions and discrete probability distributions. A continuous probability distribution contains an infinite number of values. For example, if time is infinite: you could count from 0 to a trillion seconds, billion seconds, so on indefinitely. A discrete probability distribution consists of only a countable set of possible values.

Normal Distribution

Suppose we had to design a bathroom weighing scale, how would we decide what should be the range of the weighing machine? Would we take the highest recorded human weight in history and use that as the upper limit for our weighing scale? This may not be a great idea as the sensitivity of the scale would get reduced if the range is too large. At the same time, if we keep the upper limit too low, it may not be usable for a large percentage of the population!