USA Today reported that about 20% of all people in the United States are illiterate. Suppose you take 11 people at random off a city street. Please answer parts A and B 79Viewing Saved Work Revert to Last ResponseDETAILSMY NOTESASK YOUR TEACHERUSA Today reported that about 20% of all people in the United States are illiterate. Suppose you take eleven people at random off a city street.n USE SALT(a) Find the mean and standard deviation of this probability distribution. (Round your answers to two decimal places.)peoplepeopleFind the expected number of people in this sample who are illiterate. (Round your answer to two decimal places.)people(b) How many people would you need to interview to be 94% sure that at least seven of these people can read and write (are not illiterate)? (Enter the smallest number of peopleneeded to be at least 94% sure.)people11.MY NOTESASK YOUR TEACHER.DETAILSMacBook Air40) m44888 FA4.6P

Name: USA Today reported that about 20% of all people in the United States a
Uploaded: 2024-03-20T07:06:27.000Z
Channel: Bartleby
Description: USA Today reported that about 20% of all people in the United States are illiterate. Suppose you take 11 people at random off a city street. Please answer parts A and B 79Viewing Saved Work Revert to Last ResponseDETAILSMY NOTESASK YOUR TEACHERUSA

As per given by the question, USA Today reported that 20% of all people in united state illiterate…

Math

Probability

(a) Find the mean and standard dev people people Find the expected number of people in this sample who are illiterate. (Round your answer to two decimal places.) people (b) How many people would you need to interview to be 94% sure that at least seven of these people can read and write (are not illiterate)? (Enter the smallest number of pea needed to be at least 94% sure.) people

(a) Find the mean and standard dev people people Find the expected number of people in this sample who are illiterate. (Round your answer to two decimal places.) people (b) How many people would you need to interview to be 94% sure that at least seven of these people can read and write (are not illiterate)? (Enter the smallest number of pea needed to be at least 94% sure.) people

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

Related questions

Q: How many different choices of 5 toppings are there

A: Given Data: The total number of toppings is: n = 6 Required choice of toppings is: r = 5 This…

Q: A system consisting of five independent relays is considered closed if a current can pass from A to…

A: From the given information, thee are five independent relays. Let Ei be the event that the ith relay…

Q: A recent study of 230 people in a small downtown neighborhood found that 66 had medical insurance…

Q: In how many different ways can five teaching assistants be assigned to five sections of a course in…

A: It is given that 5 teaching assistants have to be assigned for 5 sections of a statistics course.…

Q: 2. Suppose that 34% of students have brown hair, 24% have black hair, 21% have blond hair, 8% have…

A: Given that,34% of students have brown hair24% of students have black hair21% of students have blond…

Q: survey 100 students, 81 use Facebook, 36 use google, and 20 use both. what percentage uses what

A: Let represent the set of students who use Facebook, represent the set of students who use Google+,…

Q: Find the mode of the following amounts (in thousands of dollars) in checking accounts of randomly…

A: Mode=4

Q: You are to roll a fair 6 sided die 50 times and record what you roll each time. You are then to…

A: Let's start with rolling a fair 6-sided die 50 times and calculating the mean of the rolls. We will…

Q: Suppose an urn contains red, green, blue, and black marbles. Suppose you draw marbles from the urn 5…

A: If an event with n different possibilities are repeated r number of times, then the number of…

Q: In order to conduct an experiment, 5 subjects are randomly selected from a group of 45 subjects. How…

A: It has been provided, Number of subjects that are randomly chosen (r) = 5 Total subjects (n) = 45

Q: 2. Gerald buys a bag of 7,500 assorted beads online. A random sample of 150 beads contains 17 red…

A: Given that in a random sample of 150 beads there are 17 red beads. So the probability of getting a…

Q: In a survey, 90 high school students were asked if they are currently enrolled in Biology or Social…

A: Here we have to find the number of students who are enrolled in social science.

Q: I want to select a random sample of four agents. There are a total of 27 agents. The random numbers…

A: There is total 27 agents and it is needed to select 4 agents.

Q: A new smart phone comes in five colors, two screen sizes and with four different data plans. In how…

A: It is given that a new smartphone comes in five colors, two screen sizes, and four different data…

Q: How could you use a random-digit generator or random-number table to simulate rain if you knew that…

A: Note:Since Option D is not completely given. Hence we are considering among all the options, the…

Q: During the 4th of July weekend, state troopers arrested 390 drivers for DUI. Of those, 45% were…

A: Total number of arrested driver= 390 50% were suspected of using marijuana. So, 50% of 390 =…

Q: According to a poll conducted by the Gallup Corporation in March 2011, the metropolitan areas with…

A: Given, according to a poll conducted by the Gallup Corporation in March 2011, themetropolitan areas…

Q: a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. n= 549…

A: Introduction: The 100 (1 – α) % confidence interval for the population proportion, p is: Here, n is…

Q: there are 100 million eligible voters in the United States the gallup poll interviews 2,000 of them…

Q: A psychology survey has 6 choices for race and a choice for male or female.There are possible…

Q: According to the most recent data, 9.5% of engineers (electrical, mechanical, civil, and industrial)…

A: Population proportion is p=0.095 . Sample size is n=75 .

Q: elow are listed the numbers of engineers in various fields by sex. Choose one engineer at random.…

A: Given data: Mechanical Electrical Biomedical Male…

Q: How many ways can 7 out of 15 patients with the same illness be randomly selected to receive an…

A: The question is asking for the number of ways to choose 7 patients out of 15. This is a problem of…

Q: A poll showed that when a sample of people in a certain country were asked whether they were…

A: According to our guidelines we are only allowed to answer three sub-parts (h) Since we know that :…

Q: It has been estimated that only about 30% of California residents have adequate earthquake supplies.…

A: The sample size (n) is 13 and p = 0.30.

Q: a. A statistics class is made up of 10 men and 23 women. What percentage of the class is male? b. A…

Q: In a survey of 1000 students it was found that 840 own a cell phone, 450 own an MP3 player and 370…

Q: According to the most recent data, 10.6% of engineers (electrical, mechanical, civil, and…

A: Given p=10.6%, n=75

Q: A coin is tossed 17 times. In how many outcomes do exactly 11 heads occur?

Q: In a survey of 104 pet owners, 19 said they own a dog, and 52 said they own a cat. 15 said they own…

A: GivenTotal no.of pet owners=104No.of owners own a dog=19No.of owners own a cat=52No.of owners bot a…

Concept explainers

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.

Topic Video

Question

USA Today reported that about 20% of all people in the United States are illiterate. Suppose you take 11 people at random off a city street. Please answer parts A and B

79
Viewing Saved Work Revert to Last Response
DETAILS
MY NOTES
ASK YOUR TEACHER
USA Today reported that about 20% of all people in the United States are illiterate. Suppose you take eleven people at random off a city street.
n USE SALT
(a) Find the mean and standard deviation of this probability distribution. (Round your answers to two decimal places.)
people
people
Find the expected number of people in this sample who are illiterate. (Round your answer to two decimal places.)
people
(b) How many people would you need to interview to be 94% sure that at least seven of these people can read and write (are not illiterate)? (Enter the smallest number of people
needed to be at least 94% sure.)
people
11.
MY NOTES
ASK YOUR TEACHER.
DETAILS
MacBook Air
40) m
44
888 FA
4.
6
P

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Trending now

This is a popular solution!

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Data Collection, Sampling Methods, and Bias$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, probability and related others by exploring similar questions and additional content below.

Similar questions

A race is being run by ten horses. How many distinct permutations of first, second, and third place are there? Explain how you obtained your answer in detail.
How many degrees of freedom does your sample contain?
Help please!
A random sample of 50,000 college freshmen in the United States was asked if they prefer taking online courses. a. Describe the population from which the sample was drawn. Use a complete sentence. b. Describe the inference that would be made in this study. Use a complete sentence. 283/5000
The numbers of users that check social media daily is the same for "35 to 44" and "45 to 54" age groups. IF there are 41 million "35-45" year olds in North America, how many "45-54" year olds are there?
You are a professor of journalism and have 14 students in your class. How many ways can you line up 6 of the students at random from this group?
A local blood center needs donors and has advertised on the college campus. Faculty, staff, and students all donated during the drive. Many also volunteered to help set up, hand out materials, and clean up at the end of the event. There were a total of 500 people surveyed about their involvement that day. Two hundred twenty-one of them gave blood. One hundred fifty-six helped with setting up and cleaning up, as well as handing out materials. If eighty-five people both helped and donated, find out how many people neither donated nor helped. There were respondents who neither donated nor helped. (Type a whole number.)
Please read question carefully and write neatly and circle the answers
A random sample of 50,000 college freshmen in the United States was asked if they prefer taking online courses. a. Describe the population from which the sample was drawn. Use a complete sentence. b. Describe the inference that would be made in this study. Use a complete sentence.
A bag contains 9 balls numbered 1 to 9. A ball is randomly selected. What is the sample space?
Suppose a multiple choice test contains 50 questions. If each question has 5 answer choices only one of which is correct, what is the expected number of questions to be answered correctly by guessing?
A polling organization contacts 1620 undergraduates who attend a university and live in the United States and asks whether or not they had spent more than $200 on food in the last month. What is the population in the study? A. Undergraduates who attend a university. B. Undergraduates who attend a university and live in the United States. OC. Undergraduates who attend a university and live in the United States and have spent more than $200 on food. D. Undergraduates who attend a university and have spent more than $200 on food. What is the sample in the study? OA. Undergraduates who attend a university and live in the United States. B. The 1620 undergraduates who attend a university and live in the United States. OC. The 1620 undergraduates who attend a university and have spent more than $200 on food. OD. Undergraduates who attend a university.