Assume that a randomly selected subject is given a bone density test. Bone density test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find P16, the 16th percentile. This is the bone density score separating the bottom 16% from the top 84%. Question content area bottom Part 1 Which graph represents P16? Choose the correct graph below. A. x P16 A symmetric bell-shaped curve is plotted over a horizontal x-scale. A vertical line segment runs from the scale to the curve at labeled coordinate P subscript 16, which is to the left of the curve’s center and peak; the segment’s height is approximately 60 percent of the height of the curve at its peak. The area under the curve to the right of the vertical line is shaded. B. x P16 A symmetric bell-shaped curve is plotted over a horizontal x-scale. A vertical line segment runs from the scale to the curve at labeled coordinate P subscript 16, which is to the left of the curve’s center and peak; the segment’s height is approximately 60 percent of the height of the curve at its peak. The area under the curve to the left of the vertical line is shaded. C. x P16 A symmetric bell-shaped curve is plotted over a horizontal x-scale. A vertical line segment runs from the scale to the curve at labeled coordinate P subscript 16, which is to the right of the curve’s center and peak; the segment’s height is approximately 60 percent of the height of the curve at its peak. The area under the curve to the left of the vertical line is shaded. D. x

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question content area bottom

Part 1

Which graph represents

P16?

Choose the correct graph below.

P16

A symmetric bell-shaped curve is plotted over a horizontal x-scale. A vertical line segment runs from the scale to the curve at labeled coordinate P subscript 16, which is to the left of the curve’s center and peak; the segment’s height is approximately 60 percent of the height of the curve at its peak. The area under the curve to the right of the vertical line is shaded.

P16

A symmetric bell-shaped curve is plotted over a horizontal x-scale. A vertical line segment runs from the scale to the curve at labeled coordinate P subscript 16, which is to the right of the curve’s center and peak; the segment’s height is approximately 60 percent of the height of the curve at its peak. The area under the curve to the left of the vertical line is shaded.

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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