The average income tax refund for the 2009 tax year was $2964. Assume the refund per person follows the normal probability distribution with a standard deviation of $974. Complete parts a through d below. a. What is the probability that a randomly selected tax return refund will be more than $1900? oui 0.8627 (Round to four decimal places as needed.) b. What is the probability that a randomly selected tax return refund will be between $1300 and $2300? Res 0.2037 (Round to four decimal places as needed.) 1) Optic c. What is the probability that a randomly selected tax return refund will be between $3300 and $4000? (Round to four decimal places as needed.) anicatio

The average income tax refund for the 2009 tax year was $2964. Assume the refund per person follows the normal probability distribution with a standard deviation of $974. Complete parts a through d below. a. What is the probability that a randomly selected tax return refund will be more than $1900? oui 0.8627 (Round to four decimal places as needed.) b. What is the probability that a randomly selected tax return refund will be between $1300 and $2300? Res 0.2037 (Round to four decimal places as needed.) 1) Optic c. What is the probability that a randomly selected tax return refund will be between $3300 and $4000? (Round to four decimal places as needed.) anicatio

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A probability distribution of the claim sizes for an auto insurance policy appears in the following table. Claims Probability 1 2345 0.2 0.2 0.1 0.25 0.25 Find the percentage of claims within one standard deviation of the mean. Question Help: Message instructor Add Work %
Solve for the mean and standard deviation of the following Binomial distributions. a. n = 20 and p = 0.70 b. n = 70 and p = 0.35 c. n = 100 and p = 0.50
The time between arrivals of vehicles at a particular intersection follows an exponential probability distribution with a mean of 12 seconds. A. IN EXCEL sketch this exponential distribution, and Standard deviation. B. IN EXCEL What is the probability that the arrival time between vehicles is 12 seconds or less. C. IN EXCEL What is the probability that the arrival time between vehicles is 6 seconds or less.
K Assume that adults have IQ scores that are normally distributed with a mean of μ = 105 and a standard deviation o=20. Find the probability that a randomly selected adult has an IQ between 89 and 121. Click to view page 1 of the table. Click to view page 2 of the table. The probability that a randomly selected adult has an IQ between 89 and 121 is (Type an integer or decimal rounded to four decimal places as needed.)
prize Probability.of.winning Number.of.observed.wins Expected.wins 1 Toyota Rav4 1.4e-07 0 0.0077 2 $5000.00 6.54e-07 0 0.03597 3 Gourmet Grill 7.141e-06 0 0.392755 4 $100 Tims Card 0.000187653 10 10.320915 5 Free Doughnut 0.04911546 2713 2701.3503 6 Free Coffee 0.189427121 10211 10418.491655 7 Try again 0.761261831 42066 41869.400705
Assume that thermometer readings are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A thermometer is randomly selected and tested. For the casebelow, draw a sketch, and find the probability of the reading. (The given values are in Celsius degrees.) Between 0.25 and 1.25 Click to view page 1 of the table. LOADING... Click to view page 2 of the table. LOADING... Draw a sketch. Choose the correct graph below. A. z=0.25z=1.25 A graph with a bell-shaped curve, divided into 3 regions by 2 lines from top to bottom, both on the right side. The region between the 2 lines is shaded. Moving from left to right, the z-axis below the first line is labeled "z=0.25". The z-axis below the second line is labeled "z=1.25". B. z=0.25z=1.25 A graph with a bell-shaped curve, divided into 3 regions by 2 lines from top to bottom, both on the right side. Moving from left to right,…
SubPArt. Pls answer the rest
Assume that the readings on the thermometers are normally distributed with a mean of 0° and standard deviation of 1.00°C. A thermometer is randomly selected and tested. Draw a sketch and find the temperature reading corresponding to P34, the 84th percentile. This is the temperature reading separating the bottom 84% from the top 16%. Click to view page 1 of the table. Click to view page 2 of the table. Which graph represents P ? Choose the correct graph below. 84 A. В. OC. D. Ay X The temperature for P84 is approximately (Round to two decimal places as needed.)
A survey found that 40% of adults in the United States have a pet in their home. Use this information to find the following: a. Find the probability that when we randomly select 13 adults exactly 7 of them have a pet in their home. Round your answer to two decimal places. b. Find the mean and standard deviation for the number of adults that have a pet in their home when we randomly select 13 adults. Round your answer to two decimal places.