Your company has created a new software tool. The tool is rated on a four point scale (1=very bad, 4=very good) on your website. The ratings are presented below. Find the expected value (mean), variance, standard deviation for the ratings of your widget. What percent of individuals rated your product as 2 or below?  Ratings   Odds 1             15% 2             25% 3             20%

Q: I'd you chose to compute a median for a variable, which measure of variability would you most likely…

A: Introduction: It is required to identify the measure of variability that is most likely to be…

Q: The ages​ (in years) of a random sample of shoppers at a gaming store are shown. Determine the​…

A:

Q: Aspirin prevents blood from clotting and helps prevent strokes. The Second European Stroke…

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Q: Researchers looked at the average number of hours of sleep per day in a group of 8 college…

A: Given data set is X={6,6,5,7,5,4,8,5}Arrange the data set in ascending order4, 5, 5, 5, 6, 6, 7,…

Q: Amy is a pharmacology researcher studying the efficacy of a drug on groups of people based on their…

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Q: As part of the National Health and Nutrition Examination Survey, subjects were asked how long they…

A: The question is about descriptive stats Given : Data :   To find : Value of mean

Q: Find the mean, 80th percentile and standard deviation: 2,-3,7,5,-2,3

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Q: Iculate the mean and median and report the lower value of two.

A: Answer The sample size [n] = 10-7.4, -3.4, -2.7, -2.2, -1.9, -0.8, 0.3, 0.9, 0.9, 1.1The mean:The…

Q: The numbers of regular season wins for 10 football teams in a given season are given below.…

A: x x2 2 4 10 100 15 225 5 25 12 144 7 49 14 196 7 49 3 9 9 81 ∑x=84 ∑x2=882…

Q: An occupational therapist (OT) is comparing two different treatments to see which is more effective…

A: we have two groups one consisting of participants A, B, C, D and the other treatment is on…

Q: Part A: Below are the reading scores in Class A. Calculate mean, median, mode, range, standard…

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Q: The average daily points for my fantasy baseball team are {4.1, 5.7, 3.8, 4.7, 4.7, 5.5, 4.1, 2.7,…

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Q: A statistician wants to know whether newborn baby boys or newborn baby girls cry more. Consider the…

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A: Enter the given data in Excel as follows:

Q: What is the best estimate of the mean household income in this county?

A:

Q: Find the mean for the given data, 15,3,6,18,17

A: Answer: From the given data, 15,3,6,18,17 Sample size(n) = 5

Q: Use the following data set (2,3,4,4,6,7,8,12) The variance=10.5 Find the standard deviation and…

A: We have given that,  The data set is,  2,  3,  4,   4,   6,   7,    8,   12 And variance = 10.5…

Q: Find the means, variance, and standard deviation.  Data: 10, 60, 50, 30, 40, 20,25

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Q: the household rather than the male in the household. A coupon book was sent at random to either the…

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Q: Given the data set below, calculate the range, variance, and standard deviation.   49, 15, 7, 21,…

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Q: Calculate (by hand) the mean, median and mode for the following distribution: 6, 8, 39, 36, 2, 36,…

A:

Q: Let’s pretend you have some data [4,7,2,4,8,6,5,1,0,9,10,3, 8,9,5,2,7,3,2,5,7]. a. Provide a summary…

A: Given information: The given data is, 4 7 2 4 8 6 5 1 0 9 10 3 8 9 5…

Q: Use the following values to answer question: 2, 4, 6, 5, 7, 3 What is the population variance?

A: The values are 2, 4, 6, 5, 7, 3.

Q: Determine the mean of the given data -14,5,3,-15,-4,1

A: The answer is given below:

Q: Male and female athletes exercised for an hour on a treadmill. During this time, half of each sex…

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Q: What is the mean of the following data: 0,0, 1, 1, 1, 2, 2, 2, 3, 3

A: Given data, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3

Q: Find the mean and variance for the given data, 12,3,5,11,8

A: From the provided information, The data values are as follow: 12, 3, 5, 11, 8 Sample size (n) = 5

Q: Consider the data below: 17, 11, 10, 13, 1, 6, 18, 21, 8, 5 Compute the mean? Find the median?…

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Q: Find the mean, median, variance, and the interquartile range of the following data: 1.58 2.51 4.04…

A: Given data is1.58,2.51,4.04,2.2,6.43,5.19,1.58,4.32sample size(n)=8

Q: Which statistic would you use if you are interested in comparing the mean number of hours worked by…

A: In this study, the mean number of hours worked by sex(men and women) are interested in comparing.…

Q: Find the mean, median, mode, range, variance and standard deviation for the following data values:…

A: Given data :  9 11 16 22 20 20 16 14

Q: A local store owner is interested in finding the mean age of her customers. She randomly surveys 82…

A: Key statistical concepts comprise of knowledge of population, sample, parameter, and statistic.

Q: State whether one would expect the data set described below to be normally distributed. Explain why…

A: One would not typically expect the dataset described, which consists of the genders of 1,000…

Q: Create a collection of 7-12 numbers of your choice (e.g., 4, 9, 13, 2, 7, 8, 6, 10). Find the…

A: The given data set is: 4, 9, 13, 2, 7, 8, 6, 10The objective is to obtain the range, sample…

Q: What is the median for the following data set? 9,6,4,8,10,11,13. Show all

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Q: Frekans 3 7 11 15 19

A: What is the median value of the attached histogram?

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.