Monthly Mortgage Payments The average monthly mortgage paymentincluding principal and interest is s982 in the United States. If the standarddeviation is approximately s180 and the mortgage payments areapproximately normally distributed, find the probabilities. Use aTI-83 Plus/TI-84 Plus Calculator and round the answers to at least four decimalplaces.Part: 0/ 2Part 1 of 2(a) The selected monthly payment is more than si175.P(X>1175)=O

Given that mean= 982 and standard deviation = 180 So the z score of 1175 will be

Answered: Monthly Mortgage Payments The average…

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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Monthly Mortgage Payments The average monthly mortgage payment including principal and interest is $982 in the United States. If the standard deviation is approximately $180 and the mortgage payments are approximately normally distributed, find the probabilities. Use a TI-83 Plus/TI-84 Plus calculator and round the answers to at least four decimal places. Part: 0/ 2 Part 1 of 2 (a) The selected monthly payment is more than $1175. P (X>1175) = O
Coffee: The National Coffee Association reported that 62% of U.S. adults drink coffee daily. A random sample of 250 U.S. adults is selected. Round your answers to at least four decimal places as needed. Part: 0 / 6 Part 1 of 6 (a) Find the mean µa. The mean ua is 989 P 10 MacBook Air 80 888 F7 F4
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Empirical research on stock market data for two consecutive trading days indicates that 60% of the stocks that went up on the first day also went up on the second day. Yesterday, 600 stocks went up. Answer the following. (If necessary, consult a list of formulas.) (a) Find the mean of p, where p gives the proportion of the 600 stocks that went up yesterday that will go up today. (b) Find the standard deviation of p. (c) Compute an approximation for P(p <0.58), which is the probability that fewer than 58% of the stocks that went up yesterday will go up again today. Round your answer to four decimal places.
Solve Part a Suppose X is a normally distributed variable with a mean of 10 and a deviation of 2. Please give a numerical solution for part (a) a. Find p(X<0)
Empirical research on stock market data indicates that over the course of a year, 60% of stocks go up. A random sample of 600 stocks is going to be chosen at the beginning of next year. Let p be the proportion of the stocks in the sample that go up over the course of a year. Answer the following. (If necessary, consult a list of formulas.) (a) Find the mean of p. 0 (b) Find the standard deviation of p. 0 (c) Compute an approximation for P(p>0.64), which is the probability that more than 64% of the stocks in the sample go up over the course of the year. Round your answer to four decimal places. X 5
Calcium levels in people are normally distributed with a mean of 9.7 mgdL and a standard deviation of 0.5 mgdL . Individuals with calcium levels in the bottom 10% of the population are considered to have low calcium levels. Find the calcium level that is the borderline between low calcium levels and those not considered low. Carry your intermediate computations to at least four decimal places. Round your answer to one decimal place.
IQ scores have a mean of µ=100 in the general population, and have a standard deviation of σ=15. You take a random sample of n=9 people. What is the probability that your sample mean will be M=95 or less?
Heights of Models In a New York modeling agency, a researcher wishes to see if the average height of female models is really less than 67 inches, as the chief claims. A sample of 20 models has an average height of 65.8 inches. The standard deviation of the sample is 1.7 inches. At alpha = 0.05, is the average height of the models really less than 67 inches? Use the P-value method. Pleas show how to solve using the formulas, thanks!
Qualifying Test Scores To qualify for a medical study, an applicant must have a systolic blood pressure in the 70% of the mlddle range. If the systollc blood pressure Is normally distributed with a mean of 120 and a standard deviation of 3, find the upper and lower limits of blood pressure a person must have to qualify for the study. Round final answers to 1 decimal place and Intermediate z-value calculations to 2 decimal places. Applicants must have a lower blood pressure limit of and an upper blood pressure limit of to qualify for the study. Save For Later Submit Assi Check 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use Privacy A
IQ tests supposedly measure our intelligence. They typically are ‘normed’ so that they have a mean of 100 and a standard deviation of 15. (Higher scores show higher intelligence.) Use the graph and use the z-score and percents from columns b and c in Table A, when relevant. If you scored 132, what is your z-score? (Interpret.) Use table A X, z(a), (b), and (c) X z (a) (b) (c) and use the graph! Write down or save your response to use in Part 2 of this quiz. Group of answer choices -2.53 z. I'm at the 98.34 percentile rank and 1.66% of people scored smarter than me. 2.13 z. I'm at the 98.34 percentile rank and 1.66% of people scored smarter than me. -2.13 z. I'm at the 1.66 percentile rank and 98.34% of people scored smarter than me. 2.53 z. I'm at the 0.57 percentile rank and 99.43% of people scored smarter than me. 2.13 z. I'm at the 1.66 percentile rank and 98.34% of people scored smarter than me. 2.53 z. I'm at the 99.43 percentile rank…

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