The average age of all employees is 25 years, and the standard deviation of the ages of all employees is 3 years. Suppose 100 employees are randomly

Q: The average age of accountants is 53 years, with a standard deviation of 5 years. If an accounting…

A: We have to find probability..

Q: What

A: Explanation and solutions is given below....

Q: Calculate the mean, median and standard deviation of these six numbers: 4, 2, 8, 3, 12, 9

A: Given,4, 2, 8, 3, 12, 9sample size(n)=6

Q: If the average mid twenties male weighs 169lbs. and a weight of 150 is in the 31st. percentile, what…

A: We are given,Mean = μ = 169X = 150Percentile = 31st

Q: Elephants have the longest pregnancy of all mammals. suppose that for Asian elephants, the lenghts…

A: The objective of this question is to find the percentage of Asian elephant pregnancies that are…

Q: A distribution consists of three requencies 250, 300, 350 having neans 30, 15 and 20 and standard…

A: We have given that  Size N1=250 , N2=300, N3=350 Sample mean xbar1 =30 , x2=15 , x3=20 Standard…

Q: What is the standard deviation of 32, 21, 17, 38 and 6.

A:

Q: Find the mean and standard deviation for the following:…

A: a)Mean: The Mean is 1.41

Q: About 1% of the population has a particular genetic mutation. 187 people are randomly selected.…

A: Obtain the mean for the number of people with the genetic mutation in such groups of 187. The value…

Q: Use Chebyshev's theorem to solve the problem. Find the least possible fraction of numbers in a data…

A: Consider that a random variable X has expected value μ and standard deviation, σ. Now, according to…

Q: population has a mean of 350 and a standard deviation of 25, determine the probability that a random…

A: GIVEN DATA, μ=350σ=25n=40p(335<x¯<375)=?

Q: Below is a list of number of dogs owned by families, in a particular neighborhood, find the mean and…

A: According to the given information, it is required to determine the mean and standard deviation.

Q: What is the standard deviation of the data set 14,23,9,12,21,18,8

A:

Q: Suppose the prevalence of type II diabetes in a community is 36%. Researchers want to sample 16…

A:

Q: Assume that the ages of 120 barangay voters follow a normal distribution with mean 50 years and…

A: The ages of 120 barangay voters follows normal distribution with mean 50 years and standard…

Q: A process window is set so that 95.44% of product passes the process spec. In order to pass, the…

A: question: A process window is set so that 95.44% of product passes the process spec. In order to…

Q: Mathematics majors generally have one of the highest starting salaries. Suppose the average starting…

A: For Normal distribution z score = (x-μ)/σx

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: A study found that 1.98% of Social Security recipients are too young to vote. If 1142 Social…

A: Formula : Let p be the probability of success and n be the sample size then standard deviation is ,…

Q: You want to determine the probability that when seven consumers are randomly selected, exactly two…

A: 1. n = 7, x = 2, p = 0.45, q = 0.552. Mean, μ = 3.15    Standard Deviation, σ = 1.31623. P(X = 2) =…

Q: have a mean GPA of 2.57 with a standard deviation of 0.71. how many of the 850 new students have a…

A: Given that.   X~N( μ , ?)   μ=2.57   , ?=0.71    Z-score =( x - μ )/?

Q: If a set of numbers has a standard deviation of zero, what can you say about the numbers?

A: The standard deviation indicates that amount of deviation of data points from the mean.

Q: What is the formula for calculating the standard deviation of a set of n observations?

A: Introduction The standard deviation is one of the measures of variability.

Q: Define "Standard Deviation" and also Find out the Standard Deviation of the given data: 86, 37, 21,…

A: Definition: Standard deviation is a measure of the amount of variation or dispersion of a set of…

Q: According to the American Red Cross, 11.6% of all Connecticut residents have Type B blood. A random…

A: The question is about discrete probability distributionGiven :Probability of all CT residents have…

Q: The following are ages in years of nine employees of a large company. 46, 22, 35, 26, 22, 53, 33,…

A: The question is about measures Given : Data : 46, 22, 35, 26, 22, 53, 33, 42, 59   To find : Mean…

Q: Calculate the mean, median and standard deviation of these five numbers: 7, 19, 5, 12, 3

A: Mean: For a set of n observations, x1, x2, ... , xn, mean is defined as,…

Q: The following are ages in years of nine employees of a large company. 46, 22, 35, 26, 22, 53, 33,…

A: Given: The sample data is: 46,22,35,26,22,53,33,42,59

Q: The average score of all golfers for a particular course has a mean of 64 and a standard deviation…

A:

Q: Suppose the average credit card debt for Americans is $7000 and is not normally distributed with a…

A:

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: About 7% of the population has a particular genetic mutation. 162 people are randomly selected.…

A: We have to find mean and standard deviations..

Q: If X is a number on standard dice roll, find the standard deviation (o) of X.

A: The random variable is a number on a standard dice roll.If a standard die is rolled, then its…

Q: Seven students on an intramural team weigh 179 ​lb, 177 ​lb, 174 ​lb, 185 ​lb, 167 ​lb, 186 lb and…

A: Given179,177,174,185,167,186,220sample size(n)=7

Q: The average age of accountants is 43 years, with a standard deviation of 5 years. If an accounting…

A: From the given information,   Mean = 43 Standard deviation = 5 Sample size = 30

Q: A student will spend 15 hours average each week in class. If the standard deviation is 2 hours, what…

A: Given that mean=15 and standard deviation = 2 Let, X= number of hours spent by a student in the…

Q: Suppose that heights of women in Utah are normally distributed with a mean of 74 inches and a…

A:

Q: Suppose the test scores in a class are normally distributed with a mean of 70 and a standard…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: In a population of ages where the mean age is 45 and the standard deviation is 5.25, what are the…

A: Given Mean=45 Standard deviations=5.25

Q: Find the standard deviation of the following data: 13,18,13,14,13,16,14,21,13

A: Given data is13, 18, 13, 14, 13, 16, 14, 21, 13Sample size(n)=9