Find the standard deviation for the following group of data items.   19​,24​,24​,32   The standard deviation is approximate________.

Q: In 1940 the average size of a U.S. farm was 174 acres. Let's say that the standard deviation was 57…

A: Consider that the middle 50% of the distribution for x the bounds of which form the distance…

Q: 1.  In this problem, we explore the effect on the standard deviation of adding the same constant to…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: Juan makes a measurement in a chemistry laboratory and records the result in his lab report. The…

A: Given, The standard deviation of lab measurements made by students is σ = 10 milligrams. Sample size…

Q: The following are all  5 quiz scores of a student in a statistics course. Each quiz was graded on a…

A: The given score is: 9,6,8,9,8

Q: 21. A population has a mean of µ=35 and a standard deviation of o=5. After 3 points are added to…

A: When adding the constant to the entire data, E(X+a)=a+E(X)SD(X+a)=0+SD(X) This means that if the…

Q: A survey of 600 customers indicates that 75% own cars. a) What is the estimated standard deviation…

A:

Q: 3) A mathematics professor gives two different tests to two sections of his college algebra 3)…

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: Assume that adults have IQ scores that are normally distributed with a mean of μ=100 and a standard…

A: Given,mean(μ)=100standard deviation(σ)=20

Q: 2.38 Baggage fees: An airline charges the following baggage fees: $20 for the first bag and $40 for…

A: Given information $20 for first bag $40 for second bag 55% have no luggage 34% have one luggage…

Q: Given a collection of data, calculate: Data: x= 0,1,2,3 calculate the standard deviation using the…

A: The standard deviation can be calculated as: Where,   x̄ = mean

Q: A population contains five individuals. The following data is collected from them.   5 8 9 4 6…

A: Population data is: 5 8 9 4 6

Q: The following are all 6 quiz scores of a student in a statistics course. Each quiz was graded on a…

A: Given: N = 6 Formula Used: Population Standard deviation σ = ∑Xi-X2N Where X is the population mean…

Q: The following are all  6  quiz scores of a student in a statistics course. Each quiz was graded on…

A: PopulationStandard deviation is given by, Sigma=√summation(Xi-mu)2/N  Here given that, N= 6 Mean,…

Q: 2.38 Baggage fees: An airline charges the following baggage fees: $25 for the first bag and $35…

A:

Q: Find the range and standard deviation of the set of data. 11, 10, 6, 12, 11 O The range is.…

A: Given query is to find the range and the standard deviation.

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ=105 and a standard…

A: Let "X" be the IQ score of the adults.

Q: Pay your bills: In a large sample of customer accounts, a utility company determined that the…

A:

Q: Pay your bills: In a large sample of customer accounts, a utility company determined that the…

A: Between what two values will approximately 68% of number of days be?

Q: What would be the standard error of the difference between the sample averages of the lifetimes of…

A: For factory A, SD = 300, sample size = 100 For factort B, SD =  150, sample size = 100

Q: 34. The ages of a certain population in a city is normally distributed with mean of 45 and standard…

A:

Q: 2.38 Baggage fees: An airline charges the following baggage fees: $25 for the first bag and $30 for…

A: The probability distribution for the given data is as follows:

Q: uan makes a measurement in a chemistry laboratory and records the result in his lab report. The…

A: Given: Sample size n=4 Standard deviation σ=10 milligrams

Q: 1. A box contains tickets 1, 1, 2, 2, 3. (The average of the tickets is 1.8 and the standard…

A: Given Information: There are five tickets in the box. (1, 1, 2, 2, 3) The average of the tickets is…

Q: Which of the following is the property of standard deviation? Check all that apply. O If all values…

A: Standard deviation is a measure of how dispersed the data is, in relation to the mean of data.

Q: Suppose you scored 81, 78, 77, and 86 O on your four exams in a mathematics course. Calculate the…

A:

Q: 3-) a - From the values: 63, 60,74, 91, 93, 35, 72, 71, 84, 80 Find: 1- The Range 2- The number of…

A: The data is arranged as follows-

Q: eacher's Salary The average teacher's salary in a particular state is  $54,172 . If the standard…

A: A normal distribution is a continuous distribution which has many real life applications. A standard…

Q: Calculate the sample standard deviation for this data set: 11, 28, 36. The formula for the sample…

A:

Q: 1.44 Make-up exam: In a class of 24 students, 23 of them took an exam in class and 1 student took a…

A: Here Given  In class of 24 ,23 of them took exam in class and 1 on another day. Now Avg for 23…

Q: Teacher's Salary The average teacher's salary in a particular state is $54,180. If the standard…

A:

Q: 2.38 Baggage fees: An airline charges the following baggage fees: $30 for the first bag and $35 for…

A: Concepts and reason Expected value: Expected value is calculated by the sum of each values of X…

Q: 25. A population has u = 30 and o = 10. If 5 points are added to each and every score in the…

A:

Q: Teacher's Salary The average teacher's salary in a particular state is $54,109. If the standard…

A: Given information- Population Mean µ = $54,109 Standard deviation (σ) = $10,340 We have given…

Q: find the salaries corresponding to the following z  scores

A: Mean = 54,142 SD = 10,190 And the Z-score is defined as Z = (X - mean)/SD

Q: C. The shape of the population is approximately normal. O D. The shape of the population cannot be…

A: Given :  = 400  = 40 n = 9

Q: 2.38 Baggage fees: An airline charges the following baggage fees: $30 for the first bag and $40 for…

A: We have to find out the expected value and standard deviation.

Q: miles Suppose that the speeds of cars travelling on California freeways are normally distributed…

A:

Q: . You are testing the claim that the mean GPA of night students is greater than the mean GPA of day…

A: The claim is that the mean GPA of night students is greater than the mean GPA of day students.

Q: Determine whether the statement is true or false. If it is false, rewrite it as a true statement. As…

A: Solution:

Q: A club bowling team has 12 members. The first ten members bowl a game, and their average score is…

A: It is given that the total members in team are 12. First 10 members, average score is 156 and the…

Q: miles Suppose that the speeds of cars travelling on California freeways are normally distributed…

A:

Q: 1. Hotels are rated on the basis of one to five stars. The Holiday Stay Hotel chain rated all 50 of…

A: Given Data: Number of Stars (x) Frequency (f) x f 1 7 7 2 10 20 3 22 66 4 8 32 5 3 15…

Q: The following are all 5 quiz scores of a student in a statistics course. Each quiz was graded on a…

A: 5 quiz scores of a student in a statistics course. Each quiz was graded on a 10-point scale. so ,…

Q: 2.38 Baggage fees: An airline charges the following baggage fees: $20 for the first bag and $40 for…

A: note: if passenger carry two bag then he will pay total $60(20+40)

Q: a-) From the values: (63, 60,74, 91, 93, 35, 72, 71, 84, 80 ) Find: 1- The Range 2- The number of…

A: 3.) a)  From the values 63,60,74,91,93,35,72,71,84,80 1. we have to find range. Formula to calculate…

Q: 2. Refrigerator manufacturers design their freezer units to maintain temperatures within a certain…

A: The population variance is tested when the sample came from the normal population with variance σ2.…

Q: The scores on a mathematics exam have a mean of 66 and a standard deviation of 6. Find the​ x-value…

A: Given data,Mean μ=66sd     σ=6z-score=-2.33Find x-value?

Q: 6. A student got the following scores on 10 quizzes over the course of a semester: 55, 65, 70, 70,…

A: Sample size n=10 Range=maximum-minimum          =100-55          =45

Q: Human body temperatures have a mean of 98.20°Fand a standard deviation of 0.62°F.​Sally's…

A: Given that, Human body temperatures have a mean of 98.20°Fand a standard deviation of 0.62°F.​ Z…

Q: Teacher's Salary The average teacher's salary in a particular state is $54,128 . If the standard…

A: It is given that, The average teacher's salary in a particular state is $54,128. If the standard…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.