QUESTION 2 For the given frequency distribution, calculate the standard deviation S. Class Limit 1-7 8-14 15-21 22-28 29-35 Frequency 8. 12 18 12 10 O 13.14 O 15.28 O 8.92 O 10.63

Q: Students per Teacher: The following frequency distribution shows the average number of students per…

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

Q: the following Problem 20. Calculate mean frequency distribution : deviation for No. of colds…

A:

Q: Complete the given relative frequency distribution. Outcome 2 3 4 Rel. Frequency 0.4 0.1 0.1 0.3…

A: Property of probablity ∑i=1nP(Yi)=1

Q: 5) Explain what the value for the standard deviation in problem #4 tells us about Le commute times.

A:

Q: A major department store has determined that its customers charge an average of $500 per month, with…

A: The percentage of customers’ charges more than $380 per month is calculated as follows:

Q: QUESTION 20 For the given frequency distribution, calculate the standard deviation S. Class Limit…

A: Given:   Class limit Midpoint Frequency 1-7 4 8 8-14 11 12 15-21 18 18 22-28 25 12…

Q: QUESTION 7 A research worker wants to determine the average time it takes a mechanic to rotate the…

A:

Q: Question 2: - Find the standard deviation for the following data: - (8 MARK) 4,6,10,12,18 Your…

A: Given : Data : 1. 4 , 6 , 10 , 12 , 18 2. Marks obtained No. of students 10-20 2 20-30 3…

Q: Question 7 Calculate the standard deviation of the data shown, to two decim 5.8 224 29.7 26.5 28.4

A: The formula of sample standard deviation is,

Q: Question 10 Determine the standard deviation of the prices of the 100 cars sold by the auto dealer…

A: When data is given by a set containing the data points, then it is termed as raw data. To analysis…

Q: Question 4 A college placement office conducted a survey of 100 engineers who had graduated from…

A: We have to find probability using z table.

Q: Question 6 The heights of students in a class are normally distributed with mean 68 inches and…

A:

Q: A packaging company strives to maintain a constant temperature for its packages that require a…

A: Temperature of packages follows a normal distribution with a mean of 5 degrees Celsius and a…

Q: Find standard deviation the for the following data Classes 0-95 100-195 200-295 300-395 400-495…

A: The measure of dispersion means, testing how well the data values distributed. Some of the measures…

Q: Question 10 Refer to the accompanying​ table, which describes the number of adults in groups of…

A: Mean is the measures of central tendency and standard deviation is the measures of dispersion.

Q: QUESTION 19 Consider the price has a normal distribution. The price Mean is 84, and the price…

A: Let X be the price. X~N(μ,σ)  where μ=84 g                              σ=8

Q: An insurance company wants to know if the average speed at which men drive cars is greater than that…

A: Given : For Sample 1 x̄1 = 70.0 s1 = 3.2 n1 = 25 For Sample 2 x̄2 =…

Q: Question 1 The following measurements were recorded for the drying time, in minute, of a certain…

A: Given, 50 measurements of drying time in minutes.

Q: The duration of a lunch break for one employee at a manufacturing company follows a normal…

A:

Q: QUESTION 3 The distribution of the number of hours of sleep people get per night is unimodal and…

A: Provided information is, The distribution of the number of hours of sleep people get per night is…

Q: find the following probability for the standard normal deviation. P(Z>0)

A: find the following probability for the standard normal deviationP(Z≥0)=?

Q: Questions 12 to 16 refer to the following data. For a sample of 12 offenders convicted of weapons…

A: Given data,   s.no x 1 6 2 6 3 2 4 12 5 17 6 48 7 60 8 24 9 20 10 20 11 18…

Q: Question 2 For the following table distribution: Class Limit 32-36 37-41 42-46 Find the standard…

A: Calculate the following values Class Limit Class Boundary Frequency (f) Mid value (x)…

Q: Question 2: If (X) represents a set of data of three elements (a, b and c) has a standard deviation…

A: From the given information, Consider, X has the following data points: a =4 , b =6, c = 10  and Y…

Q: QUESTION 1 Find  the standard deviation of the following data items:   22, 27, 27, 35

A:

Q: QUESTION 8 The weight, in grams, of vacuum-packaged meat product is normally distributed with…

A: For the given data Find all the required

Q: In Table 5 of Unit 3, data were given on the month of death (January = 1, February = 2, ...,…

A: Chi-square goodness of fit          The Chi-square goodness of fit test is a statistical hypothesis…

Q: Complete the given relative frequency distribution. Outcome 1 2 4 5 Rel. Frequency 0.1 0.1 0.3 0.4…

A: We want to compute Relative Frequency  A) P(2,3,4) B) P(E') , where E={3,4}

Q: In Table 5 of Unit 3, data were given on the month of death (January = 1, February = 2, ...,…

A: Given: Month Frequency 1 13 2 4 3 7 4 10 5 8 6 4 7 5 8 3 9 4 10 9 11 7…

Q: Question 3  Suppose Andrew earns $45,000 EC per month. The average salary for everyone in Andrew’s…

A: Given  Andrew earns $45,000 EC per month The average salary for everyone in Andrew’s company is $41,…

Q: Question 11 Calculate the standard deviation of the following data set. 100 100 100 100 100 100 100…

A:

Q: Question 14 The frequency distribution of the speed, in kilometres per hour (km/h), of a sample of…

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Q: 19. Shown here is a frequency distribution for the number of inches of rain received in 1 year in…

A:

Q: Question 4 of 10 Suppose a normal distribution has a mean of 98 and a standard deviation of 6. What…

A: Mean μ=98 Standard deviation σ=98

Q: Question 3 Suppose Andrew earns $45,000 EC per month. The average salary for everyone in Andrew's…

A: We have given that.   X~N( μ , ?^2 )     Z-score =( x - μ )/?

Q: QUESTION 7 Calculate MAD (Mean Absolute Deviation) based on the given data below 45 11 38 35 37 45…

A: As per our guidelines we are suppose to answer only one question7)Given data…

Q: QUESTION 14 Find the standard deviation for the given data. Round your answer to one more decimal…

A:

Q: QUESTION 10 A research worker wants to determine the average time it takes a mechanic to rotate the…

A: Thank you for posting question As per Guideline I have solve 1st ques . Please answer for 2nd Que re…

Q: Question 7 The average monthly rainfall in Southern Ontario is 26 mm. If rainfall data over the year…

A:

Q: QUESTION 6 A research worker wants to determine the average time it takes a mechanic to rotate the…

A: Obtain the large sample size. The sample size is obtained below as follows:   The formula of sample…

Q: Question 10 The average and standard deviation of the weights of 350 Indian students are 55 kg and 3…

A:

Q: Complete the given relative frequency distribution. Outcome 1 2 3 4…

A: If S = { x1, x2....xn } be the sample space, then the relative frequencies must  satisfy the…

Q: * For Questions (11)-(13): A group of 15 smokers were asked about th number of cigarettes they smoke…

A: Quartile deviation is a type of measure of dispersion, which tells how the observation is…

Q: Question 2: The number of pieces of mail received daily at the school office is normally distributed…

A: From 68-95-99.7 rule we know that almost 68% of the data falls within one standard deviation from…

Q: Question 8 If X is normally distributed with a mean of 30 and a standard deviation of 2, find P(30 <…

A: GivenMean(μ)=30standard deviation(σ)=2

Q: Question 1 Suppose a waitress keeps track of her tips, as a percentage of the bill, for a random…

A: GivenMean(μ)=14%standard deviation(σ)=3%sample size(n)=60

Q: Question 9 1 pts A data set of class exams is approximately normally distributed with mean 75 and…

A:

Q: QUESTION 1 A certain machine makes electrical resistors having a mean resistance of 50 ohms and a…

A: Let, X=resistance Given that X follows a normal distribution with mean=50 and standard deviation=4…

Q: QUESTION 13 Find the standard deviation for the given data. Round your answer to one more decimal…

A: Given that  10,9,20,12,19,11,14,13,20  To find the standard deviation

Q: Question 1 Consider a sample with a mean of 30 and a standard deviation of 2.5. Use Chebyshev's…

A:

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.