Below is a stemplot of the percentage of residents aged 18 to 34 in each of the 50 states. The stems are whole percents and the leaves are tenths of a percent. What is IQR value for this data? Round your answer to one decimal place.

Q: Find the percentage of data points that lie between -2.31 and 1.85.

A: Assuming the data follows standard normal distribution with mean 0 and standard Deviation 1Finding…

Q: 5 is 35% of what number using a tape diagram?

A:

Q: of flowers on each bush is 9, 8, 14, 4, 13, 5, 9, 8, 6, 8. Find the percentile for 10.  Round your…

A: Hai

Q: what percent od 60 is 15

A:

Q: Sally just received her SAT results. Her SAT mathematics score was 600 and is in the 74th…

A: The score is 600 and it is the 74th percentile.

Q: Locate these decimals on the number line... 14 % 14 % 14.8, 14.25 14.502 14 75/100 14 15

A: We have to show the following numbers on the number line .

Q: If you have the following data set {70, 72, 67, 78, 70} and you add 85 to the data set, how much…

A: the following data set {70, 72, 67, 78, 70} and you add 85 to the data set,

Q: What is the range of the middle 50% of the data? The five number summary for the average annual…

A:

Q: elaine gets quiz grades of 77,85, and 66. she gets a 61 on her final exam. find the weighted mean if…

A: It is given that the quiz grades are 77, 85, and  66. The final grade is 61.

Q: All freshmen at Roseville High School are required to play exactly one sport. The table below shows…

A: Solution

Q: 104 concert-goers at the Glass House in Pomona, California were asked if they know how to play an…

A: Here it is given that- Number of concert goers  = 104 Number of concert goers who can play an…

Q: What's the median of 10.2,12.6,20.4, and 13.6 to 3 decimal places

A: It is an important part of statistics. It is widely used.

Q: Keiko is recording the percentages she earned on each 81, 92, 78, 93, 81, 76, 90 Find the range of…

A: Range= high value - low value.

Q: Find the percent of 16/20 and 4/20. What are the relationships between the answers?

A:

Q: Four out of five students got As in math. What percent of students got As in math?

A: From the Percentages

Q: Find the z-score that separates the largest 5% of scores from the rest.  Round your result to 3…

A: Obtain the z-score that separates the largest 5% of scores from the rest. The z-score that separates…

Q: Calculate the standard score for each given value. Round your answer to the nearest hundredth

A: According to the given information, we have Mean = 1123 Standard deviation = 241

Q: A student gets 9 out of 15 problems correct on a homework assignment. What percent of the assignment…

A: The objective of this question is to find out the percentage of the assignment that the student got…

Q: 63.7 Silver Cloud 88.7 78.3 91.3 Celebrity Xpedition 87.2 91.7 73.6 Silver Shadow 87.2 75.0 89.7…

A: Regression analysis is a statistical method used to determine the strength and the relationship…

Q: Yesterday Al recorded 5 data values, and the mean of those values was 90. Today he realized the data…

A: Given dataMean of 5 data values = 90Data value 80 was actually 50Mean is given by

Q: Give the scores: 88, 64, 77, 94, 67, 59, 99, 87, 94, 71,75 Find the score at the 72nd percentile or…

A: Given data is88,64,77,94,67,59,99,87,94,71,75sample size(n)=11

Q: What percent of the population of the world lives in countries other than China or India?

A: The total population in the world is 7693 million.

Q: It is known that, in a small town, 0.22 percent people are allergic to pollen and 0.2 percent people…

A:

Q: What is the percent of deaths in 2003, or after 2010?

A:

Q: The probability of drawing a red face card from a deck of cards.   Leave your answer as a percent to…

A:

Q: In October, the circulation of the local newspaper was 247,624. The circulation of the newspaper in…

A: In October, the circulation of the local newspaper was 247,624 In September, the circulation of the…

Q: Find the mean (average) for the following set of numbers: x=10,24,29,19,17,1,6,14,8,6

A: From the given information we want to find the mean of the given data.

Q: n a survey done in 2010, students in a statistics class were asked, "How do you prefer to use your…

A: The survey result of students is given.

Q: If 80% of Mars rovers land in former streambeds and 65% of the rovers in streambeds on Mars find…

A: Solution-: Let, S-Mars rovers land in former streambeds        W- historic evidence of water Given:…

Q: There were 34 females that weighed over 250 pounds. What percent of females aged 20 to 29 weighed…

A: Given data,  N~(161.61,48.95)  i.e., μ=161.61σ=48.95   If n=34 P(X>250)=?

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.