One interpretation of the z-score formula is that:   a. it transforms any normal distribution into standard normal distribution.   b. it converts a normal distribution into a continuous uniform distribution.   c. it measures the area between the mean of a normal distribution and any point on the distribution.   d. it measures the distance, measured in the same units as the data, between the mean of a normal distribution and any point in the distribution.

Q: z-score that has 73.6​% of the​ distribution's area to its right.

A: To find the z value, use the standard normal table to find the z-score which cuts off an area of…

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: For a distribution, the mean was The z-score for a value is negative, which of the following…

A: Z-score is the number of standard deviations, a given data point lies from the mean.

Q: Use the table to find the standard score and percentile of the following data values. a. A data…

A: The data value are given by using this value the standard scores and percentiles are to be otained.

Q: Marty is a principal who needs to contact the highest performing 15% of students in his school’s…

A: Given, Grade point average is a normally distributed. Z score also follows normal distribution with…

Q: Sketch a standard normal curve and shade the area that lies to the left of a. 2.19, b. -1.63, c. 0,…

A: a)Givenleft of 2.19

Q: For a normal distribution, the z-score boundary that separates the lowest 33% of the scores from the…

A: We have to find the Z-score boundary that separates the lowest 33%

Q: The annual income for a sample of 450 part-time students is normally distributed with a mean income…

A: Given that: Population mean, μ=31000 Population standard deviation, σ=3000 Sample size, n=450

Q: Decide which of the following statements are true. Answer Normal distributions are symmetric, but…

A: Given the normal distribution,   The Normal distribution is also known as the Gaussian distribution.…

Q: Sketch the normal distribution with a. μ = 3 and σ = 3. b. μ = 1 and σ = 3. c. μ = 3 and σ = 1.

A:

Q: Which of the following are properties of the normal curve? Select all that apply. LA. The area under…

A:

Q: 24. The probability that a river flow exceeds 2000 m3/sec is 15%. The coefficient of variation of…

A:

Q: A variable having a normal distribution can by summarised by the value of the parameters: the mean,…

A: Introduction :-  Here we have to check the effect of increase in Standard deviation on curve of…

Q: Find the average deviation from the mean for the following distribution : 3 5 7 11 13 f: 2 7 10 9 5…

A:

Q: For bone density scores that are normally distributed with a mean of 0 and a standard deviation of…

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.