Determine whether the graph shown could represent a variable with a normal distribution. Explain your reasoning. If the graph appears to represent a normal distribution, estimate the mean and standard deviation.4750535659Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice.O A. The graph could not represent a variable with a normal distribution because the curve has two modes.approximatelyand its standard deviation is approximatelyB. The graph could represent a variable with a normal distribution because the curve is symmetric and bell-shaped. Its mean(Round to one decimal place as needed.)O C. The graph could not represent a variable with a normal distribution because the curve crosses the x-axis.O D. The graph could not represent a variable with a normal distribution because the graph is skewed to the left.O E. The graph could not represent a variable with a normal distribution because the curve is constant.O F. The graph could not represent a variable with a normal distribution because the graph is skewed to the right.

We have given that a statement about the graph, whether the graph shown could represent a variable…

Answered: 47 50 53 56 59 Select the correct…

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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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 P9, the 9th percentile. This is the bone density score separating the bottom 9% from the top 91%. Which graph represents P9? Choose the correct graph below.
Ch 8 FRQ ( The distribution of average speeds of the top 53 drivers in NASCAR is roughly symmetric, unimodal, and bell-shaped, with a mean of 184.8 mph and a standard deviation of 7.2 mph. In the space above, draw a Normal Curve, from z=-3 to z=+3. Draw vertical lines at the mean and each whole number standard deviation above and below the mean. Write two rows of numbers under the base line; one row with the number of standard deviations above and below the mean (z-scores), and a row under that with the actual values for this problem. ] What percent of drivers would you expect to have speeds below 199.2 mph ? Show all work. s] What is the area under the curve to the left of a speed of 170.4mph Show all work. What is the probability that a driver selected at random will have a speed below 172.0 mph ? Show all work. B] What percent of drivers would you expect to have a speed above 177.0 mph ? Show all work. How many drivers would you expect to have speeds between 170.4 mph and 177.0 mph…
Big Blossom Greenhouse was commissioned to develop an extra large rose for the Rose Bowl Parade. A random sample of blossoms from Hybrid A bushes yielded the following diameters (in inches) for mature peak blooms. 2 in, 3 in, 3 in, 8 in, 10 in, 10 in
The graph illustrates the distribution of test scores taken by College Algebra students. The maximum possible score on the test was 130, while the mean score was 71 and the standard deviation was 13. 32 45 97 110 58 71 84 Distribution of Test Scores Q What is the approximate percentage of students who scored less than 45 on the test? What is the approximate percentage of students who scored between 71 and 84 on the test? What is the approximate percentage students who scored between 58 and 84 on the test? What is the approximate percentage of students who scored between 45 and 97 on the test?
Q.4 F
Just do 2 and 3 please.
One graph in the figure represents a normal distribution with mean μ=9 and standard deviation σ=2. The other graph represents a normal distribution with mean μ=14 and standard deviation σ=2. Determine which graph is which and explain how you know. Choose the correct answer below. A. Graph A has a mean of μ=9and graph B has a mean of μ=14 because a larger mean shifts the graph to the left. B. Graph A has a mean of μ=14 and graph B has a mean of μ=9 because a larger mean shifts the graph to the left. C. Graph A has a mean of μ=9 and graph B has a mean of μ=14 because a larger mean shifts the graph to the right. D. Graph A has a mean of μ=14 and graph B has a mean of μ=9 because a larger mean shifts the graph to the right.
Round answers to 4 decimal places. Draw graphs and include functions where appropriate.2. The scores on a standardized exam are normally distributed with a mean of 74 and standard deviation of 7.32. Let X = one exam score.a. Write the distribution of Xb. Find the probability a randomly selected exam has a score higher than 80.c. Find P97
B Choosing a topic Sk.. For data that is not normally distributed we can't use z-scores. However, there is an equation that works on any distribution. It's called Chebyshev's formula. The formula 1 where p is the minimum percentage of scores that fall within k k2 is p = 1 - standard deviations on both sides of the mean. Use this formula to answer the following questions. a) If you have scores and you don't know if they are normally distributed, find the minimum percentage of scores that fall within 2.2 standard deviations on both sides of the mean? b) If you have scores that are normally distributed, find the percentage of scores that fall within 2.2 standard deviations on both sides of the mean? c) If you have scores and you don't know if they are normally distributed, how many standard deviations on both sides of the mean do we need to go to have 64 percent of the scores? Note: To answer part c you will need to solve the equation for k.
Recall the histogram of annual maximum wind speed. Frequency оооооо 25 to 30 30 to <35 35 to 40 A histogram with a single peak is unimodal. A histogram with two peaks is bimodal. A histogram with more than two peaks is multimodal. Look over the histogram again and notice the number of peaks, or modes, in the distribution. Indicate below the class interval(s) where a peak occurs. (Select all that apply.) 40 to 45 45 to < 50 50 to < 55 55 to < 60 14 12 10 60 to < 65 co 4 25 30 35 40 45 50 55 60 65 annual maximum wind speed
A normally distributed
Which of the following data are measured at interval level? a. The ranking of all lecturers in your course after they have been designated as excellent, good, satisfactory, and poor b. The classification of a lecturer as excellent, good, satisfactory, or poor c. Last week's average temperature in degrees Celsius d. The number of bottles of milk a family drinks in a month e. The time required to test each vaccine in a laboratory

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