3.3 Normal DistributionsScore: 5/33 2/12 answered-Question 12<>Let X represent the full height of a certain species of tree. Assume that X has a normal probabilitydistribution with a mean of 158.6 ft and a standard deviation of 21.4 ft.Find the probability that the height of a randomly selected tree is between 111.52 ft and 201.4 ft.Round your answer to three decimal placesP(111.52 < X < 201.4)Question Help: Message instructor Post to forum

The objective of this question is to find the probability that the height of a randomly selected…

Answered: 3.3 Normal Distributions Score: 5/33…

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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Ana is a dedicated Skee Ball player who always rolls for the 50-point slot. The probability distribution of Ana's score X on a randomly selected roll of the ball is shown here. The mean of this probability distribution is 23.8. Score Probability 10 0.32 20 30 40 0.27 0.19 0.15 50 0.07 What is the standard deviation of X? Interpret this value. σχ 12.632. The score of a randomly selected Skee Ball roll will typically vary from the mean (23.8) by about 12.632. = ox= 159.56. The score of a randomly selected Skee Ball roll will typically vary from the mean (23.8) by about 159.56. Oox = 159.56. The score of a randomly selected Skee Ball roll will vary from the mean (23.8) by 159.56. The standard deviation cannot be calculated in this situation because we do not have a list of randomly selected Skee ball point values. x = 12.632. The score of a randomly selected Skee Ball roll will vary from the mean (23.8) by 12.632.
Consider a value to be significantly low if its z score less than or equal to -2 or consider a value to be significantly high if its z score is greater than or equal to 2. A data set lists weights (grams) of a type of coin. Those weights have a mean of 5.30979 g and a standard deviation of 0.06539 g. Identify the weights that are significantly low or significantly high. .BBE What weights are significantly low? Select the correct answer below and fill in the answer box(es) to complete your choice. O A. Weights that are greater than (Round to five decimal places as needed.) O B. Weights that are between and (Round to five decimal places as needed. Use ascending order.) OCWeights that are less than (Round to five decimal places as needed.)
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 P15, the 15th percentile. This is the bone density score separating the bottom 15% from the top 85%. How to get and what is the bone density score corresponding to P15 is ?
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.
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 P7, the 7th percentile. This is the bone density score separating the bottom 7% from the top 93%. Which graph represents P7? Choose the correct graph below. A. P7 The bone density score corresponding to P7 is (Round to two decimal places as needed.) B. A P7 2 C. ^ P7 Ly D. A P7
The percent of fat calories that a person in America consumes each day is normally distributed with a mean of about 36 and a standard deviation of 10. Suppose that one individual is randomly chosen. Let X=percent of fat calories. Round all answers to 4 decimal places if where possible a. What is the distribution of X? X N( b. Find the probability that a randomly selected fat calorie percent is more than 40. c. Find the minimum number for the lower quarter of percent of fat calories.
A researcher has tested the hypotheses H0: = 69 versus H1: < 69 at a 5% level of significance. Here denotes the average height (in inches) of an adult male resident of the United States. In order to test these hypotheses, the researcher obtained a random sample of 400 heights for adult males. The sample average height is 68.6 inches and the sample standard deviation is 5 inches. Compute the p-value.
The overhead reach distances off adult female are normally distributed with a mean off 200 cm and a standard deviation of 8.6 cm a.Find the probability that an individual distance is greater than 209.30 cm d.Find the probability that the mean for 20 random selected distance is greater than 198.70 cm
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 P15, the 15th percentile. This is the bone density score separating the bottom 15% from the top 85%. Which graph represents P15? Choose the correct graph below. O A. AS P15 The bone density score corresponding to P15 is (Round to two decimal places as needed.) O B. A P15 Q C O C. A P15 Q Q O D. A P15
The mean height of an adult giraffe is 18 feet. Suppose that the distribution is normally distributed with standard deviation 1 feet. Let X be the height of a randomly selected adult giraffe. Round all answers to 4 decimal places where possible.a. What is the distribution of X? ~ N( , )b. What is the median giraffe height? ________ ft.c. What is the Z-score for a giraffe that is 20 foot tall? _________
Assume that thermometer readings (in degrees Celsius) are normally distributed with a mean of 0 and standard deviation of 1. A thermometer is randomly selected and tested. Find the probability of a reading between -1.12 and 1.05 degrees Celsius. Draw a bell curve, label your mean and shade the area that you are trying to find. Then answer the question. (round to 4 decimal places) If a gambler places a bet on the number 7 in roulette, he or she has a 1/38 probability of winning. a. Find the mean and standard deviation for the number of wins of gamblers who bet on the number 7 one hundred and twenty times. b. Would 0 wins in one hundred and twenty bets be an unusually low number of wins? IL Proctorio is sharing your screen. Stop sharing Hide OCT 13 étv MacBook Air R K B 36

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