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The monthly average high temperatures for New York City have the following five-number summary: the median is 63, the third quartile is 77, the interquartile range (IQR) is 37, and the maximum is 84. Which of these shows the correct box-and-whisker plot for the data?

A scientist is curious about whether tooth whitening gel actually worked. He randomly assigned 58 adults to use a whitening gel after brushing their teeth, while another 59 adults only brushed their teeth with fluoride toothpaste twice a day. Before the study started and at the end of two weeks of either brushing and using the gel or brushing only, the tooth whiteness was measured, and it was found that the average change in the shade was larger for the gel group. Which of the following can be concluded from the study? 

A survey by Pew Research Center conducted in 2015, among 2,001 adults, found that 15% of American adults have used online dating sites or mobile dating apps.  12% of the respondents have used online dating sites. 9% of the respondents have used a dating app on their cellphone.   What percentage of the sample have used either online dating sites or mobile apps, but not both?

Below is shown a boxplot of ages of participants in a study. What statistics do you recommend for the center and spread of these ages?  Why?  

Four separate random samples (of four completely different populations) were taken.  We graphed all four side-by-side in two different ways below.  Which of the histograms matches the NarrowBox plot?  

A survey was conducted to study the smoking habits of U.S. residents. Below is a data matrix displaying a portion of the data collected in this survey. How many variables are categorical? sex age marital gross Income smoke amountWeekends amountWeekdays Female 42 Single Under $2,600 Yes 12 12 Male 44 Single $10,400 to $15,600 No 8 8 Male 53 Married Above $36,400 Yes 6 6 … … … … … … … Male 40 Married $2,600 to $5,200 Yes 8 8  

Suppose you have a data set with the following five-number summary: Minimum = 26, Q1 = 32, Median = 34, Q3 = 38, Maximum = 58. What is the upper cutoff point for potential outliers? (By upper cutoff point, we mean the number such that anything greater than it is an outlier). 

Below is shown a table of IRS income tax returns from 2013 by three income categories, along with whether or not that tax return was audited. Were having an income over $1,000,000 and being audited independent in 2013? Why or why not?

Many fire stations handle emergency calls for medical assistance as well as calls requesting firefighting equipment. A particular station says that the probability that an incoming call is for medical assistance is .85. Assuming that successive calls are independent of one another, what is the probability that two successive calls will both be for medical assistance? 

Question: think about ERP for an organization, it is analogous to the _______ for a human body.