Twenty-five percent of the employees of a large company are minorities. A random sample of 7 employees is selected. Question 18 What is the standard deviation of the number of minorities? Your answer must have four digits after the period (e.g., 5.1010).

Twenty-five percent of the employees of a large company are minorities. A random sample of 7 employees is selected. Question 18 What is the standard deviation of the number of minorities? Your answer must have four digits after the period (e.g., 5.1010).

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: About 7% of the population has a particular genetic mutation. 800 people are randomly selected.…

A: Let X be a random variable denoting the number of people having genetic mutation out of 800 people.…

Q: In a particular retail clothing store, approximately 25% of potential customers who walk into the…

Q: According to the 2019 census, approximately 20.81% of the Canadian population are immigrants. You…

A: Note- Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: Joan's finishing time for the Bolder Boulder 10K race was 1.78 standard deviations faster than the…

A: From the provided information, Joan’s finishing time for the Bolder Boulder 10k race was 1.78…

Q: Given the mean is 120 minutes and the standard deviation is 30 minutes. What is the probability that…

A: The mean is 120 minutes and standard deviation is 30 minutes.

Q: 500 freshmen at Arundel University took part in a math comprehension test. The scores were normally…

A: Given: μ=75 and σ=7. The z-score is calculated asz=x-μσ

Q: You are given the following information for a sample (mean = 40; standard deviation = 10). What is…

A: According to the provided information:

Q: Seven students on an intramural team weigh 179 lb, 172 lb, 174 lb, 185 lb, 162 Ib, 181 Ib and 193…

A: According to the provided information, the sample weights are 179, 172, 174, 185, 162, 181, 193

Q: 500 freshmen at Arundel University took part in a math comprehension test. The scores were normally…

A: From the provided information, Population size (N) = 500 Mean (µ) = 75 Standard deviation (σ) = 7…

Q: A baseball team has 31 players, 8 of whom bat left-handed. Suppose that the manager of this team is…

A: A baseball team has 31 players, 8 of whom bat left-handed. Suppose that the manager of this team is…

Q: uppose that the low daily temeprature is a mean of 25 degrees and a standard deviation of 12…

A: Given data,μ=25σ=12

Q: The following are distances (in miles) traveled to the workplace by 6 employees: 13, 14, 9, 11, 3,…

Q: A test has 20 multiple choice questions with three options of answer. There is ONE(1) correct…

A: Let random variable X be the number of correct answers. X has binomial distribution with parameters…

Q: Calculate the standard deviation for the following sample of 4 observations. Individual Income 1. 62…

A: Below is the answer

Q: What is the standard deviation of the following two scores: 120 and 140 10 100 20…

Q: 442 12 Value Frequenc 2. 6.

A: The following table is given, value Frequency 2 4 3 4 4 2 5 1 6 2

Q: In the question below, do 50 minutes imply the mean of the population or the mean of the sample?…

A: The derived numerical characteristic that explains the average (or mean) at the population level can…

Q: Find the standard deviation (s) for the following: 8, 9, 8, 5, 6

A: The mean of the given numbers is obtained as follows:

Q: About 10% of the population has a particular genetic mutation. 1000 people are randomly selected.…

A: Binomial distribution is a discrete distribution that deals with the probabilities of success and…

Q: dying the number of gallons of gasoline purchased per customer at self-service pumps. The mean…

Q: For the following population, answer the following: Remember you can copy and "paste special" the…

A: Given, 9, 88, 62, 64, 14, 20, 63, 73, 16, 92, 87, 68, 74, 52, 11

Q: A test consists of 980 true or false questions. If the student guesses on each question, what is the…

A: Given : n = 980 Since the questions are true or false type questions, there will be only two…

Q: A doctor is researching the effects of "too much text messaging" on a group of teenagers. He has…

A: It is given that the mean is 312 and standard deviation is 125.

Q: 2. Fill in the blanks: A standardized variable always has a mean of O and a standard deviation of…

A: 2. A standardized variable is always has mean 0 and standard deviation of 1.

Q: A normal population has a mean of 37 and a standard deviation of 8 A.What proportion of the…

A: Given Population mean μ=37, standard deviations σ=8

Q: ou are given the following numbers: 3. 3 11 4 Calculate the unbiased sample standard deviation.…

A: Given sample is: 3,3,8,1,4. Sample size = n = 5. Unbiased estimate of population standard deviation…

Q: The average teacher's salary in a particular state is $54,194 . If the standard deviation is…

Q: Subject: statistics . 500,000 DC Commuters traveled to DC every day. The average distance…

A: Population mean, μ=13 Population sd, σ=4.7

Q: Disability causes 48% of all mortgage foreclosures. Given that 20 mortgage foreclosures are audited…

A: Here's if we consider Binomial distribution then probability of success is 0.48 and number of trial…

Q: Suppose you made 5 measures of your walking times and got the following values: 5.6 s, 5.9 s, 5.5…

A: 5.6 , 5.9, 5.5, 5.6, 5.8 Sample size(n)=5

Q: Use the Empirical Rule to find the number of scores falling into each of the following intervals: a.…

A: The Empirical rule says that for bell- shaped distribution, About 68% of observations lie within 1…

Q: 1, the mean number of goldfish in the package is 187. find the probability of choosing a package…

A: Thanks for posting the question. Since multiple questions are posted, we will answer one question…

Q: The length of ten screw are: 17.2,17.9,17.9,18.0,18.0,18.0,18.1,18.1,18.2,18.6 The mean is 18. Find…

Q: About 13% of the population has blue eyes. 1700 people are randomly selected. a. Find the mean…

A: It is given that About 13% of the population has blue eyes i.e. probability that a population has…

Q: A large corporation employs 21,995 individuals. The average income of all employees is $64,372, with…

A: The population mean is denoted by μμ. The population standard deviation is denoted by σσ. Sample…

Q: people were given three cups of water to taste. One was bottled water and the other two were tap…

A: The probability that student will guess the correct bottled water will be: p=13

Q: Twenty-five randomly selected students were asked the number of movies they watched the previous…

A: Given frequency distribution table is,# of movies (Xi)Frequency (fi)0519263441Using formulas,

Q: One of the following is classifies as interval level: Select one: a. Height of the student O b. Area…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 500 freshmen at Arundel University took part in a math comprehension test. The scores were normally…

A: Given - The given distributed is normal distributed with Mean =μ=75 σ=7 , n=500 To Find a) P(61…

Q: Consider the following sample: 1, 4, 7, 2, 6. How does the standard deviation change when the 7 is…

A: Sample data:1, 4, 7, 2, 6.Sample size The objective is to indicate how the standard deviation of the…

Q: This is a standard deviation contest. You must choose four numbers from the whole numbers 0 to 9,…

A: Standard deviation:The standard deviation indicates by how much each observation differs from a…

Q: Consider the data from the Anthropology 105 class. The mean for women is 64.33 in and the standard…

A: Given, The mean for women is 64.33 in and the standard deviation is 2.64 in. The average height of…

Question

Twenty-five percent of the employees of a large company are minorities. A random sample of 7 employees is selected.

Question 18

What is the standard deviation of the number of minorities? Your answer must have four digits after the period (e.g., 5.1010).

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

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

Answer all questions: 1. What is the range and standard deviation for the following population of scores? Scores: 5,2,5,4
Given the following scores of students in a test: 5,7,11,12,13,18 a) add 8 to each score then find the standard deviation. b) multiply each score by 7 then find the standard deviation
Three students were applying to the same graduate school. They came from schools with different grading systems. Thuy is Vichet is Kamala is Number Number Student GPA School Thuy Number 2.5 Vichet 86 Table 2.74 School Average 2.8 80 Kamala 8.5 8.3 How many standard deviations is each student away from hiir school average? If the student GPA is higher than his school average, enter this as a positive number. If the student GPA is lower than his school average, enter this as a negative number. Average GPA GPA School Standard Deviation 0.8 10 0.5 standard deviations from Thuy's school average. standard deviations from Vichet's school average. standard deviations from Kamala's school average.
About 10% of the population had a particular genetic mutation. 900 people are randomly selected. Find the standard deviation for the number of people with the genetic mutation in such groups of 900. Round answer to 4 decimal places.
Find the number of women.
Seven students on an intramural team weigh 205 lb, 193 lb, 200 lb, 211 lb, 183 lb, 202 lb and 206 lb. What is the standard deviation of the weights of these students? The standard deviation is (Round to the nearest tenth.)
The ages of the population of a town are Normally distributed with mean 43 and standard deviation 14. The town has a population of 5,000.How many would you expect to be aged between 22 and 57?
At 60 airports within a region, the temperature is recorded. The average temperature is 67°F, with a 5°F standard deviation. What is the z-score for 68°F?
An instructor selected a sample of the following quiz scores(out of possible 10 points) for 12 students in one of his classes: 9 10 2 6 7 7 4 3 3 8 5 7 The standard deviation for this set of scores is what?