What is the standard deviation of the data set comprising the numbers 3, 7, 4, 7 and 9? 4.8 O 2.45 2.19 None of the above Submit Question

Q: Calculate the standard deviation from the data given below : Size of item Frequency Size of item…

A:

Q: 2. A student has the following quiz scores: 5, 8, 16, 17, 18, 20. Find the standard deviation for…

A: Given- A student has the following quiz scores: 5, 8, 16, 17, 18, 20. To find- Find the standard…

Q: 4. A sample of heights in feet of active volcanoes in North America, outside of Alaska, is listed…

A: From the provided information, Sample size (n) = 6 Level of significance (α) = 0.05

Q: Each year, tornadoes that touch down are recorded. The following table gives the number of tornadoes…

A: The given data as follows: 3,2,54,123,209,96,70,89,61,55,114,102 Thus,  The minimum value of the…

Q: The tine spent by a teacher at woek in the holidays is nonually distributed with a mean of 20 hours…

A: From the above data Third option is correct 17.8

Q: A sample of size n = 10 is drawn from a population. The data is shown below. 135.2 135.2 118.8 109.7…

A:

Q: What heights separates the bottom 37% of heights?  inches What heights separates the top 14% of…

A: Assume female heights for adults are normally distributed with a mean of 64.3 inches and standard…

Q: What is the standard deviation of the data (7, 1, 7, 10, 5, 3, 2}? O 2.7 O 3.0 5.0 O 9.0

A:

Q: What is the average score for those who are confident about asking questions they don't understand…

A: The bar graph is provided for those who are confident about asking questions they don’t understand…

Q: Find the mena deviation about the (a) median (b) mean in respect of the following numbers :…

A: Arrange the numbers in ascending order: 26,29,39,46,56,65,72,79,85,99 First we find median and mean…

Q: When computing the standard deviation, does it matter whether the data are sample data or data…

A: We know that for sample data we use (n-1) while calculating sample standard deviation whereas for…

Q: The time spent by a teacher at work in the holidays is normally distributed with a mean of 20 hours…

A: Given: Mean = 20 Standard deviation = 5

Q: 6. Which of the following statistics may be obtained even if not all the values in the data are…

A: Given problem Given that   Which of the following statistics may be obtained even if not all the…

Q: Assuming that the heights of college women are normally distributed with mean 65 inches and standard…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: Using the ungrouped find the following | Quartile deviation, Average deviation, Standard deviation.…

A: Descriptive statistics can be used for explanatory data analysis purposes. It give a basic idea…

Q: Calculate the standard deviation from the data given below : Size of item Frequency Frequency Size…

A:

Q: Compute the standard deviation of the following set of data to the nearest whole number: 21, 22, 23,…

A:

Q: Find the population standard deviation for the following Data 7, 12, 9, 6, 11.Round your answer to…

A: Population size = 5.

Q: he scores of students on an exam are normally distributed with a mean of 424 and a standard…

A:

Q: What is the standard deviation of the data set comprising the numbers 5, 4, 2, 6 and 8? 02 O5.02 04…

A: In question,  We've given some data set then we'll find the standard deviation of that data set. The…

Q: 11. What is the standard deviation of the following sample data:  44, 40, 46, 20, 27, 39.   Round to…

A: It is given that the sample data of 44, 40, 46, 20, 27, 39. Mean: The mean of the sample data is:

Q: What is the average score for those who are willing to rise to the challenege with the standard…

A: Here X takes values 1, 2, 3, 4, 5 with following frequencies The average score is calculated using…

Q: There are 15 mobile phones in a package box, 9 of which are iphones. If a person takes 5 phones from…

A:

Q: II: From the following raw scores below, a) 35, 19, 24, 29, 42, 39,…

A: To calculate:  1. Compute the MAD for letter (a)    2. Compute the Standard Deviation for letter (b)…

Q: What is the average score for those who are able to speak up for themselves with the standard…

A:

Q: A sports shop records the sales of items made in India and those made in Australia. Country of…

A: The standard deviation is the measure of variability from individual data values to the mean and…

Q: What is the average score for those who say they are an employee who others can depend on with the…

A: Average score: The general formula to obtain the expected value (mean) of a discrete random variable…

Q: Which of the following has the large st standard deviation? 1, 1, 3, 5, 5 O 1,2, 3, 4,5 O 1,4, 7,…

A:

Q: Assume that the distribution of scores on a college entrance exam is normal, with a mean of 500 and…

A: We have to find z score and from z table probability.

Q: Consider the data set 1, 2, 3, 4, 5, 6, 7, 8, 9. a. Use the defining formula to obtain the sample…

A:

Q: The temperatures during the first week of November are listed in the table below. What is the…

A:

Q: In a job fair, 3000 applicants applied for a job. Their mean age was found to be 28 with a standard…

A: The mean is 28 and the standard deviation is 4.

Q: The time spent by a teacher at work in the holidays is normally distributed with a mean of 20 hours…

A: X: time spent by a teacher at work in the holidaysX~N(μ,σ)Mean(μ)=20 hoursstandard deviation(σ)=5…

Q: What is the standard deviation for those who are confident about asking questions they don't…

A:

Q: II: From the following raw scores below, (round off to two decimal places)  a)  35,    19,   24,…

A: The formula to find Mean absolute deviation(MAD) is : MAD=∑i=1nxi-xn And for standard deviation is :…

Q: $ 20. Calculate the standard deviation from the following data : Size of item Frequency Size of item…

A: size of items (x) Frequency (f) f⋅x f⋅x2 6 3 18 108 7 6 42 294 8 9 72 576 9 13 117 1053…

Q: A sample of size n = 10 is drawn from a population. The data is shown below. 118.8 134.3 104.2 109.3…

A:

Q: students who completed this core set of courses results in a mean math score of 24.6 on the college…

A: here sample mean = 24.6 sample standard deviation = 3.3 here n = 200

Q: Calculate SS, variance and standard deviation for the following population of N =5 scores: 2, 13, 4,…

A: The population of N = 5 scores are: 2,13,4,10,6 The population mean is given by: The sum of squares…

Q: The time spent by a teacher at work in the holidays is normally distributed with a mean of 20 hours…

A: Given: mean μ= 20 Standard deviation σ=5 Concept: Here we shall use z score formula, z=x-μσ

Q: A set of exam scores is normally distributed with a mean = 74 and standard deviation = 4. Use the…

A: 68-95-99.7-rule: Let X be an observation from a normal distribution, having mean µ and standard…

Q: 1) Here are the weights in pounds of a sample of 10 students in fourth grade class: 61, 64, 66, 74,…

A: A) Mean: Mean(x¯)=Sum of data valuesNumber of data values        =61+64+66+74+77+78+78+83+84+8510…

Q: What is the standard deviation of the data set comprising the numbers 4, 4, 6, 4 and 7? 1.59 1.99…

A: Solution: Let X be the random variable. The given data is 4, 4, 6, 4 and 7.

Q: Given n=10 measurements: 13, 15, 14, 16, 20, 15, 16, 19, 12, 18 The standard deviation is

A:

Q: Assuming that the heights of college women are normally distributed with mean 61 inches and standard…

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

Q: Calculate the standard deviation of the data shown, to two decimal places 3.5 21.1 7.7 16.5 22.8…

A:

Q: "On the Standford-Binet test, the mean IQ is 100. A class of 13 kindergarten pupils were tested with…

A: According to our policy we can answer only first three part for remaining please repost the…

Q: What is the standard deviation of the following sample of size n = 5?-3,5,8,10,12

A:

Q: 9.- American women's height are approximately normally distributed with mean 63.8 inches and…

A:

Q: Calculate the sample standard deviation of the data shown. Round to two decimal places. 10 14 22 21…

A: