38 a. What quarter has the smallest spread of data?

Q: 12. a. What percent of the customers in the cartoon are exactly the median age? b. Must one item…

A: The percentage of customers in the cartoon exactly the median age is  zero percentage 0%because half…

Q: The measures of center: and Measures of spread: and

A: The measures of centers are mean, median and mode

Q: 4 8. 12 16 20 24 28 What is the range of the data? What is the median value? What percent of the…

A: We have to find range, median, percent of the data that lies below 8, quarter of the data that has…

Q: Q.1 Find median for the ages of seven preschool children. 1,3,4,2,3,5 and 1

A: The formula of median when n is odd is,   The median is,

Q: Explain Bionomial distribution with examples?

A: X~Binom(n , p) =========== Formula : P(X =x) = nxpx(1-p)n-x ; x= 0,1,2,..,n

Q: Class: Paula recorded the times of 10 different students who ran the 200 yard dash 10 12 14 16 18 20…

A: In this question we have to find out the mean of the data which we can find out by adding the data…

Q: _13. What is the 70th Percentile of the distribution?        a.95.2                       b. 93.4…

A:

Q: What is the median nutritional status for the 7 individuals?

A: The number of nutritional status is 7.

Q: Solve for the range, variance, and standard deviation of this data: 40, 34, 50, 46, 47, 39.

A: Given data set 40,34,50,46,47,39

Q: Can the X-bar chart be used in order to see if the number of defectivesin a production timeslot is…

A: There are two types of Control charts: 1) Control charts for variables. 2) Control charts for…

Q: Given the data set, show how the variance and z-score of each grade is found.

A: Variance is the measure of dispersion. It provide the deviation of data set from the mean. It is…

Q: Find the variance of the given population. -10, -11, -12, 12, 11, 2, 11, 22 O 165.84 O 135.67 O…

A:

Q: Compare the center and spread of the two given data sets: A: 3, 5, 5, 7, 9 B: 1, 3, 5, 8, 10

A: Given : two data sets: A: 3, 5, 5, 7, 9B: 1, 3, 5, 8, 10 1. Center : Median is middle observation…

Q: What is the five number summary for the box and whisker plot? 10 15 20 25 30 35 40 Scores

A: Given: Box and whisker plot is given below:

Q: What percentage of pets are Rabbits?

A:

Q: a. Which age group typically has the highest rate of obesity? b. Comment on any similarities and…

A: The bar plot has been provided to find out conclusion

Q: In which borough is variation across zip codes in first-dose recipiency rates largest? Brooklyn The…

A: There are different ways to measure the variation for a data set.

Q: 9. Which data set has the greatest coefficient of determination ()?

A: here use concept of correlation and coefficient of determination

Q: Does the situation describe a parameter or a​ statistic?   The percentage of families and…

A: We have to find the situation.of given data

Q: how many sports played male vs female based on the data

A: Given, The number of sports played by the students: Grade Number of students 9 16 10 13 11…

Q: 5) Find 5 - number summary of the data. 6)Find the distribution of the data.

A: Given: The data-set: n=20 1 1 2 2 3 3 4 4 4 5 5 6 6 6 7 9 9 9 9 9 (1) The 5 number summary…

Q: عند إرسال هذا Find the النموذج variance of the data انات التالية * 2,4,5,6.8.17

A: As per our guidelines we are supposed to answer only one question per post so I am solving first…

Q: 8- What is the median of this data set? What does this number mean? 10 20 30 40 50 60 70 80 90 100…

A: Solution: Here, the box plot is given.

Q: 5. How many districts were sampled in all? A) 21 C) 25 D) 26 6. What is the estimate for the error…

A: Solution:

Q: 43 58 61 67 74 a. What quarter has the smallest spread of data? Second Third )Fourth First

A: From the given data; a)  Q2 spread=61-58=3   Therefore, Second quarter has the smallest spread

Q: What number completes the folloming distribution containing 3 trials? P(X) 0.25 0.35 0.30

A: Given data, What is the probability that distribution contains 3 trials?

Q: (a) What proportion of states** have cases that are going down? (b) What proportion of states** have…

A: Hint: Calculate the number of states in all groups then divide them by the total number of states to…

Q: Find the range, variance, standard deviation, and coefficient of determination.

A: Concentration of all the values around the central value of the given data is known as measures of…

Q: 1(a). What is the point estimate for the proportion of people who liked the chocolate bar?

A: here use given data

Q: find population variance for given data  12,89,77,56,95,42,63,8,5,99

A:

Q: 13. what is the median of the given data? * C. 7.5 D. 8 В. 7 A. 6

A: If there are even amount of number then for median we take pair of two middle term and divide by 2.…

Q: What is the variance of the data set 14,23,9,12,18,8

A: Given Data :  XX 14 23 9 12 18 8 Below table will be used to calculate variance :…

Q: 1. A report in a national magazine estimated that 39 percent of. . of their wives' eyes. Bill…

A: Let X be the number of American husbands who do not know the color of their wives' eyes. A sample of…

Q: 5. A study attempted to estimate the proportion of Florida residents who were willing to spend more…

A: Population: Population consists of the complete subjects that are included in the study for making…

Q: d. What is the saving level that separates the top 25% of the workers surveyed from the rest?

A: Instruction :  The saving level that separates the top 25% of the workers will be the value present…

Q: (a) What proportion of babies born full term are low-birth-weight babies? (b) What proportion of…

A: From the given information, let X be the full term baby birth weights. Here, X follows normally…

Q: 17. How many observations are there?

A:

Q: State the mean and variance of the sampling distribution of the mean?

A:

Q: Consider the boxplot below. 10 19 21 26 What quarter has the smallest spread of data? Third

A:

Q: find population variance for given data  15,85,96,75,46,35,21,56,54,47

A:

Q: Consider the data set {6,6, 9, 2, 5}. What is the population variance for this set? Round your…

A:

Q: a) How many guests are represented on the box and whisker plot? b) What percent of days had less…

A: here form given boxplot, using 5 point summary  to answer the question  minimum = 15 Q1  = 30 Q2  =…

Q: The sample size of the data 10,10, 10, 10, 10  is

A: The data set is 10, 10,10,10,10.

Q: 3. Which box plot has the largest interquartile range?

A: we are given various quartile plots in the figure

Q: The sample mean is a point estimate - of the population mean

A: Let ,  sample mean = x bar population mean = mu

Q: a) Represent data by using Cumulative Frequency Polygon.  b) Find Population Standard Deviation.

A: Part a: We plot the less than cumulative frequency polygon using the step by step procedure in excel…

Q: Calculate the 70th percentile of the data set shown

A: Given n=10 x 4.4 8.8 10.3 12 20.9 26.8 28 28.4 29.2 30

Inverse Normal Distribution

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.