Cholesterol levels of 200 or higher are considered high for teenagers. What percent of teen boys have high cholesterol? Explain.

Q: In a school band of 24 students, 9 students play brass instruments. What percent of the members play…

A: The total students in the and is 24. The number of students that play brass instruments is 9.

Q: Determine the level of measurement of the variable below.   Highest degree conferred (high school,…

A: Ordinal variable is categorical, where the variable has ordered categories and the distances between…

Q: A politician's support grew from 42% by 3 percentage points to 45%. What percent (relative) change…

A:

Q: What proportion of students studied more than 4 hours?

A: Given that Total number of students = 240 Number of students who studied more than 4 hours = 50

Q: Kevin scored at the 70th percentile on a test given to 9920 students. How many students scored lower…

A:

Q: What is the requested percentage?

A: 4.70c) In  this question, we have given Mean=513 S.D=130 To find the percentage for the score less…

Q: The average monthly car insurance premium in Indiana is $ 686 and for Illinois is $ 815. Find the…

A:

Q: Could you explain how to find the last question which talks about proportion?

A: First understand proportion Proportion means ( how many parts from total) Example : One apple is cut…

Q: What percent of the data is below 31? What percent of the data is above 35? What percent of the data…

A: As per bartleby guidelines we can solve only first three subparts and rest can be reposted

Q: Nielsen media research determined the precise proportion of all Americans watching the super bowl by…

A: Population is the set of all objects of interest. Sample is a subset of the population. A sample is…

Q: How many of your batchmates have you surpassed if your graduation rank in high school is 56th…

A:

Q: What percent of scores are below a T score of 56?

A: Given, T score is 56. Now,

Q: A group of preschoolers has 15 boys and 12 girls. What is the ratio of girls to boys as a…

A: The group has, 15 boys and 12 girls. So, the ratio of girls to boys is, 12 : 15 = 4 : 5

Q: monthly

A: Please refer to the image below

Q: The median annual salary of police officer was 384,000 pesos. If the 25th percentile for the annual…

A: GIven, Median = 384000 25th percentile of annual salary = 282525       To find,   P (282525 < X…

Q: Kevin scored at the 60th percentile on a test given to 9920 students.How many students scored lower…

A: Given Kevin score = 60th percentile No. Of students = 9920

Q: How do you determine which exam score is higher relative to others

A: The normal distribution is a continuous distribution.

Q: The last student surveyed was active for 25 minutes. What percent of students were more active than…

A: It is given that Min = 4, Median = 25 and maximum = 86

Q: Among the 2302 respondents, 56 said they have more than five tattoos. What percentage of respondents…

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

A:

Q: What are the percentages of scores that fall between -1 and 0/0 and 1

A:

Q: A new bridge reduced the normal 35-minutes travel time between two cities by 14 minutes. What…

A: Given information Original amount of time=35 minutes Reduce amount of time=14 minutes We have to…

Q: What percentage of scores are between scores 75 and 89?

A: By emperical rule  P(-1<Z<1)= 0.68 P(-2<Z<2)=0.95 P(-3<Z<3)= 0.

Q: What percent of trees are 85-89.9 ft tall? What percent of trees are at least 70 ft tall?

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Q: What percentage of scores are between scores 68 and 82?

A:

Q: According to a survey, 59% of parents say their teens are addicted to using their cell phones. Write…

A: Given data is :  59% of parents say their teens are addicted to using their cell phones To write…

Q: Bob scored at the 65th percentile on a test given to 9960 students. How many students scored lower…

A: x = no. of data value less than x  * 100/total no. of data values

Q: What Percentage of deaths occurred after 2006?

A:

Q: City crimes records show that 20% of all crimes are violent and 80% are nonviolent. Ninety percent…

A: Given that, city crimes record shows that 20% of all crimes are violent and 80% are non violent.…

Q: In a survey, the median household income in a country was found to be £27000, and the mean household…

A: Given: Mean=53000Median=27000

Q: You know that 149 of the 196 students that took a test scored lower than 85 on test. What percentile…

A: As given,  There are 196 students  Out of 196 students, 149 students have test scored lower than…

Q: In a survey 300 adults were interviewed, 123 said they had yearly medical checkup. Find the 95% for…

A: Sample size is n = 300 Number of adults who had yearly medical checkup, X = 123 The critical value…

Q: Butternut squash has a yield percent of 105%. Explain why this is incorrect.

A: The given statement is "Butternut squash has a yield percent of 105%". The yield percent of an…

Q: In a sample of 169 students, 16 said they have donated blood. What percent of the students have…

A: Given that, In a sample of 169 students, 16 said they have donated blood.

Q: Approximately 29% of music lovers like Country Music. Of those who do, 96% do not have mild brain…

A: P(like country music) = 0.29 P(not have mild brain damage | like county music = 0.96

Q: 75 of 500?

A:

Q: Kevin scored at the 60th percentile on a test given to 9920 students. How many students scored lower…

A: Since Kevin scored 60th percentile, it means that Kevin's score is in the top 60 % of amongst the…

Q: how many classes are there and what is the class width? what is the what is the percentage of…

A: From the given frequency table find # classes = ? width =? x =# of hours played video game P(…

Q: The wildfires on the West Coast have become increasingly more destructive over recent years. Among…

A: total span of california=100×106 acre california were consumed by fire=4,397,809 acre

Q: The percentage of men who meet the height requirement is %.

A: Men's height are normally distributed with : Mean , µ = 68.7 Standard deviation , σ = 3.4

Q: What is the percentage of deaths that occurred in 2011?

A: We have given that the total number of fatal motor vehicle traffic crashes in the United States for…

Q: 350 students took a standardized test, Sarah’s score was ranked at the 7th. What was the percentile…

A: that is (7×100)/350=700/350 =2

Q: The American Booksellers Association, which represents independent booksellers, includes 1500…

A: The number of businesses is 1500 in 2500 locations. Twenty years ago, the number of businesses was…

Q: A principal of a college wants to estimate the proportion of smokers among his students. What

A: Given : Margin of error, E = 10% = 0.10 Sample proportion = 0.30

Q: In a survey, 7 out of 8 people preferred cooking to washing dishes. How would you write this ratio…

A: In a survey, 7 out of 8 people preferred cooking to washing dishes. How would you write this…

Q: A diastolic blood pressure greater than 90 is classified as hypertension (high blood pressure). What…

A:

Q: Approximately 19% of music lovers like Country Music. Of those who do, 97% do not have mild brain…

A: Assume the following events C - A music lover like country music B - A music lover does not have…

Q: What is the percentage of players whose age is less than 32?

A: here given  mean = 33 year  standard deviation  =  2 year x= retirement age