Determine whether the statement is parts a) and b) are true or false. Explain your answer in words, or give appropriate counterexample to support your answers. a) The standard deviation of the set of numbers -6,6,-6,6,-6,6,-6,6 is zero. Select the  correct answer below and , if necessary, fill in the answer box to complete your choice. b) If the standard deviaton of a set of data is zero, then all the numbers in the data set are the same.

Q: The standard deviation of (1,9,8,4) is approximately what?

A:

Q: The standard deviation of the sample  1,1,1,2,3,3,3 is

A:

Q: 14. x:  471.7     659.3        740.5      790.5        781.3         1047.3        969.5…

A: The given table is, x 471.7      659.3         740.5       790.5         781.3          1047.3…

Q: Find the standard deviation of the observations 5, 11, 18, 25 and 41, using mutual differences…

A: Given: data data values  Xi: 5,11,18,25,41  Then to find standard deviations using mutual difference…

Q: In two factories A and B loeated in the same industrial area, the average weekly wages (in rupees)…

A: Solution is given.

Q: There are 500 employees in Company ABC of which the mean salary per day is Php385.00 with a standard…

A: Given information: In a company ABC, there are 500 employees. Let X be the random variable denoting…

Q: The standard deviation may not be greater than the mean. O True O False

A: False: standard deviations may be greater than mean  example: random variable x follow standard…

Q: 4.) Determine the range and Standard Deviation of the set of data 4, 8, 9, 11, 13, 15

A:

Q: If the mean of a list of numbers is 16.7 and the standard deviation is 0,

A: Mean is a measure of central tendency. It is one of the most important measures to find out around…

Q: Find the range and standard deviation of the set of data. 11, 10, 5, 12, 12 O

A: The detailed solution is as follows below:

Q: Juwan and Salvador began arguing about who did better on their tests, but they couldn't decide who…

A: Here we need to compute the z score of Salvador and Juwan and find who performed relatively better…

Q: Find the range and standard deviation of the set of data. 12, 8, 7, 11, 22 O

A: Given sample data is  12,8,7,11,22.

Q: Calculate the standard deviation of the following four observations: 12,13,15,20

A:

Q: Note that each value of the second data set is obtained by subtracting 3 from the corresponding…

A: The mean and the standard deviation can be calculated using the excel. The formula for mean is…

Q: According to Chebyshev's theorem, for a data set with a mean of 100 and a standard deviation of 5,…

A: From the provided information, Mean (µ) = 100 Standard deviation (σ) = 5 X~N (100, 5)

Q: The standard deviation of (1,9,8,4) is approximately?

A: Given Information: 1,9,8,4

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: Consider a data set that has a mean of 15.5 and a standard deviation of 6.2. According to…

A: Given: Mean = 15.5 Standard deviation = 6.2 First of all, we find k It is given that 93.75% of the…

Q: Find the range and standard deviation of the set of data.   10,9,6,12,18

A: The set of data 10,9,6,12,18

Q: The arithmetic mean and the standard deviation of a set of 9 items are 43 and 5 respectively . If an…

A:

Q: Compute the standard deviation: a.       7, 6, 3, 5, 7, 9, 8, 4 b.       15, 30, 45, 15, 35, 25,…

A: We have given that,  a. 7, 6, 3, 5, 7, 9, 8, 4   b. 15, 30, 45, 15, 35, 25, 40   c. 40, 50, 60, 55,…

Q: With reference to the information, another stretch of road has 73 streetlights. What are the mean…

A:

Q: The towing capacities (in pounds) of 25 four-wheel drive pickup trucks have a bell-shaped…

A: From the given information, we have mean = 11830 Standard deviation = 2370 We have to find the…

Q: "The water bills for residents in Davao City have a mean of Php3406 and a standard deviation of…

A: We have given that,  Mean = 3406, population standard deviation (σ)= 236 and sample size (n) = 109…

Q: Compute the standard deviation: a.       5, 8, 5, 6, 3, 4, 7, 9, 9, 4 b.       10, 12, 15, 13, 20,…

A: (a)   Use EXCEL Procedure for finding the value of standard deviation.   Follow the instruction to…

Q: Consider a data set that has a mean of 20.3 and a standard deviation of 6.4. According to…

A: Given information- Population mean, µ = 20.3 Population standard deviation, σ = 6.4 We have given…

Q: Find the range and standard deviation of the set of data. 10, 8, 6, 13, 23 O

A: we first calculate the range of our data range = maximum-minimum=23-6=17range =17Mean=μ=sum of all…

Q: Find the range and standard deviation of the set of data. 12, 10, 5, 13, 15 O

A:

Q: The luggage weight for individual air travelers on some specific route have a mean of 80 pounds and…

A: Given information: The luggage weight for individual air travelers on a specific route, measured in…

Q: Exercise 6: Product codes of two, three, four, or five letters are equally likely. W mean and…

A: Given, The product codes of two, three, four, or five letters are equally likely. Hence the P(x)  =…

Q: Below are the ages of randomly selected customers in a fast food chain 46 48 29 27 30 31 35 28 29 27…

A:

Q: Without making any calculations, which data set has the smallest standard deviation? О 1, 1, 2, 2,…

A: Answer: Given datasets are: 1,1,2,2,3,3 1,3,5 0,1,5,6,9,10 1,1,1,1,2,2,2,2

Q: Give the TI commands to find the mean, median, and standard deviation and compare to the original…

A: TI Calculator

Q: 4.15. If the local restaurants in a small town record an average of 92 customers a day, with a…

A:

Q: calculate the standard deviation of the following four observations: 13,14,16,18

A:

Q: Find the range and standard deviation of the set of data. 5, 7, 5, 7, 7, 8, 10 O

A: Solution: The objective is to find range and standard deviation of the given set of data

Q: A school district requires all gradu 74 and the standard deviation wa

A: The normal distribution is one of the important continuous probability distribution that is used to…

Q: 4. Describe the data in terms of center spread and shape. 5. How tall would a player have to be in…

A: The data shows the heights of the players for the Boston Celtics in inches.

Q: he scores for the top 10 ice sculptures in an ice sculpture competition can be found below. Score…

A:

Q: The mean and st deviation of 2  balls is given                        Ball1              ball2…

A: Given data is appropriate for measures of central tendency .

Q: Suppose we want to test whether or not the average SAT score at the University of Seychelles is…

A: From provided information, It is claimed that the average SAT score at the University of Seychelles…

Q: Given the sample data: 159, 120, 151, 160, 144, 153, 174, 147, 151. Compute for standard deviation

A: Standard deviations

Q: The daily water usage per person in Davao City is normally distributed with a mean of 18 gallons and…

A: Mean = 18 Standard deviation = 4

Q: A personnel psychologist has to decide which of three employees to place in a particular job that…

A:

Q: At their​ inauguration, the ages of the first six​ (out of a current number of​ 45) presidents of a…

A: First we will find the sample standard deviation the steps are as follows1) Step 1: Find the mean of…

Q: Create a set of three numbers with a mean of 5 and a standard deviation of 5.

A:

Q: freedom, the standard devi

A: yes , standard deviation of population is estimated without the degree of freedom . We know that…

Q: Use a calculator to find the standard deviation of this sample data: 122 141 140 118 155 174 198 133…

A: According to the given information, we have Data set: 122,141,140,118,155,174,198,133,168,195

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.