10. The time spent to arrive to the university is normally distributed with mean 10 minutes and standará deviation 3. If classes start at 9:00 am, what time should students leave home so they will be late only 9% of the time? a. 10 minutes before 8 am b. 25 minutes before 8 am C14 minutes before 8 am d. None

10. The time spent to arrive to the university is normally distributed with mean 10 minutes and standará deviation 3. If classes start at 9:00 am, what time should students leave home so they will be late only 9% of the time? a. 10 minutes before 8 am b. 25 minutes before 8 am C14 minutes before 8 am d. None

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...

See similar textbooks

Similar questions

I need help with PART D
Which of the below statements is (are) correct? * a. The researcher may use t-statistics in this case as long as the population is assumed normal. b. The researcher may use z-statistics or t-statistics in this case as long as the population is assumed normal. O c. Both a and b O d. None of these
4.. Solve all parts clearly please
1. In the language of science, a variable that is thought to be causal is called a. an independent variable b. a hypothetical variable c. a primary variable d. a dependent variable 2. An hypothesis states that "as a person's education increases their income is likely to increase". In this statement, income is a. the dependent variable b. the independent variable c. the hypothetical variable d. the secondary variable 3. "Ninety percent of dorm residents approved a proposed ban on smoking". This statement is an example of the use of a. inferential statistics b. descriptive statistics c. multivariate statistics |d. inductive statistics 4. Which of the following is a discrete variable? a. height b. age c. miles per gallon d. number of children
21. Suppose that the weight of a particular hand weight is advertised to be 5 pounds, but it can actually be as little as 4.7 pounds or as much as 5.1 pounds. What is the standard deviation of the weight? Round your answer to two decimal places.
I need the answers ,b, c , d, f , g Thank you
Solve the following. Show your complete solution. And Sketch the graph In a job fair, 3000 applicants applied for a job. Their mean age was found to be 28 with a standard deviation of 4 years а. How many applicants are below 20 years old? b. How many applicants are above 32 years old? How many have ages between 24 and 32 years? С.
5. 6. For a distribution in the (a, b, 0) class, you are given that p₁=0.6p and p₂ = 0.4p₁. Determine po. For a distribution in the (a, b, 0) class, you are given 0.02835, P2 0.1323, and p3 0.0.3087. that Pi Determine P4. = = =
6. Section 5.7 Number 46 parts b and c only 46. According to the College Board, scores on the Math SAT for the class of 2017 had a mean of 527 and a standard deviation of 107. Assume that they are roughly normally distributed. a. What was the interval spanned by the middle 50% of scores? b. What was the interval spanned by the middle 68% of scores? c. How high must a student score in order to be in the top 2.5% of scores?
I need help with parts b,c, and d please B is not 992
Suppose the gasoline taxes (in cents per gallon) are given for the following 5 states: 46, 34.6, 27.7, 9.4, 47.8 Find the mean of these gasoline taxes. Round your final answer to 2 decimal places.
please I neee the answer in the way of Ho and H1 . Thanks