QUESTION 5a) The following table shows that 100 patients infected with COVID-19 for stages 1 to 4 on aparticular day were reported at Hospital XYZ.XFrequencyi) Find the value of n.110220iii) Calculate the standard deviation of X.3n440ii) Calculate the probability that the number of patients infected with COVID-19 is at moststage 2.

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Answered: QUESTION 5 a) The following table shows…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question 10 According to USPS study, the weights of shipment packages are normally distributed with a mean of 28.2 oz and a standard deviation of 5 oz. Let X be the weight of a randomly selected package. 1. Describe the probability distribution of X and state its parameters and σ: (μl = X Select an answer Select an answer a. less than 25 oz. b. between 32 and 40 oz. c. more than 33 oz. TBNZ 2. Find the probability that the weight of a randomly selected package is (Round the answer to 4 decimal places) J = (Round the answer to 4 decimal places) (Round the answer to 4 decimal places) 3. Find the 55-th percentile for the weights of shipment packages. decimal place) oz (Round the answer to 1
Question 4 According to a study done by Pierce College JBLM, the height for Hawaiian adult males is normally distributed with an average of 66 inches and a standard deviation of 2.5 inches. Suppose one Hawaiian adult male is randomly chosen. Let X = height of the individual. Find the probability that the person is between 63.5 and 68.5 inches. Please explain how you derived this answer
Assume that adults have IQ scores that are normally distributed with a mean of m = 105 and a standard deviation s =15. Find the probability that a randomly selected adult has an IQ between 91 and 119. The probability that a randomly selected adult has an IQ between 91 and 119 is ____.
QUESTION 5 a) The following table shows that 100 patients infected with COVID-19 for stages 1 to 4 on a particular day were reported at Hospital XYZ. X Frequency i) Find the value of n. 1 10 2 20 iii) Calculate the standard deviation of X. 3 n 4 40 ii) Calculate the probability that the number of patients infected with COVID-19 is at most stage 2.
Question 18 Assume that the readings at freezing on a bundle of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find the probability of obtaining a reading between -2.857°C and 0.928°C. P( - 2.857 Next Question hp
Question 23 Find the 51-th percentile for a random variable X² that has a X2-distribution with 49 degrees of freedom. The 51-th percentile for X² is X0.49 (Round the answer to 3 decimal places)
Suppose that you have a four-sided die that is equally weighted (i.e. equal chance of any of the four sides landing face up). The four values on the die are [12.5968, 2, -2 and -12.5968] . If we roll the die 81 times, record the average, and repeat this process a total of 100 times, what does the central limit theorem predict will be the standard deviation of the set of averages? A. 1.00 B. 0.729 C. 0 D. 1.40
Question 13. (DEATH IS A SURE AND UNCERTAIN EVENT) A doctor noted the Systolic Blood Pressure (SBP) of a random sample of 10 patients admitted to his hospital. He found that the average SBP of the 10 patients was 125 mm of Hg with a standard deviation of 80 mm of Hg. Later, two patients died, due to very high SBP values of 250 and 260 mm of Hg. Now he wonders: AMBULANCE Doctor Two dead patie What is the standard deviation of the SBP of the remaining 8 patients?
Question 5 Find the 82 -th percentile for a uniform random variable U with the lower limit 17 and the upper limit 21. The 82 -th percentile for U is (Round the answer to 2 decimal places)
Question 2 What does the notation X-N(2,5) mean? A) X belongs to the set N, which contains the numbers 2 and 5. B X is normally distributed with mean = 2 and standard deviation = 5. с X is normally distributed with mean = 5 and standard deviation=2. X is a normally distributed variable than can equal 2 or 5.
Question 4 According to the WHO, the birth weight for male babies born full-term is normally distributed with a mean 90.1 oz and a standard deviation of 17.3 oz. Let X be the birth weight of a randomly selected male baby born full-term. 1. Describe the probability distribution of X and state its parameters and σ: X Select an answer Select an answer XTBZEN a. less than 128.5 oz. b. between 61.9 and 82.1 oz. c. more than 131.7 oz. X² (μ = 2. Find the probability that the birth weight of a randomly selected male baby born full-term is 3. Find the 65-th percentile for the birth weight. 0 = (Round the answer to 4 decimal places) (Round the answer to 4 decimal places) (Round the answer to 4 decimal places) oz (Round the answer to 1 decimal place)
Question 7 Submit Question ▼ Assume that the readings at freezing on a bundle of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find the probability of obtaining a reading less than 3.005°C. P(Z MacBook Air

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