In the summer of 2011, the Chicago libraries recorded the number of participants per branch of the library versus the number of books read from that branch.  They wanted to predict the number of books read at each branch based on the number of participants in the summer program.  The least squares regression equation was  books read = -657.0 +24.74 participants For one branch of the library the number of participants was 797. The number of books read was 9733.  Find the residual. 

The below stem and leaf plot states the length of eruptions (mins) for Old Faithful for a sample of 272 eruptions.    What is the minimum eruption length?

The monthly electric bills for a local business had a mean of 1535 dollars. The values go from 1430 to 1630 dollars. Assume that the data is normally distributed.  Which of the following is a plausible value for the standard deviation?

Below is a contingency table from the results of the 2012 General Social Survey. Respondents were asked to identify how much they understood issues facing the country. Responses were broken down by gender.   1:None 2:A little 3:Some 4:Quite a Bit 5:A great deal Male 14 51 140 89 23 Female 16 69 138 58 16   What is the conditional probability that someone knows “a little” given that they were female?

Below is a histogram of a random sample of selling price of houses in Gainesville, Florida during the Spring 2017. Describe using all four characteristics.  

A least squares regression equation was computed to predict the weight (lbs) of a 3 year old toddler based on the toddler’s height (in). The equation was yhat =  5.63 + 0.618x.  (The data set included toddlers between roughly 24 and 48 inches.)  Find the predicted weight of a toddler that was 44 inches tall.

Below is a histogram of a random sample of the breakfast cereal. The histogram shows the amount of fiber per serving.  Describe using all four characteristics.

Below is a scatterplot of calories versus potassium content in cereals. What would be an approximate value of r?  

Below is the result of a class survey. The students were asked to state the make of the car they drove and their level of satisfaction with the car on scale of 1-10.   Which make of car had the smallest IQR?

Below is a table from the General Social Survey. In 1986, respondents were asked how much they agreed or disagreed with the following statement. “Welfare helps prevent hunger and starvation”.   Male Female Row Total Strongly Agree 96 132 228 Agree 455 615 1070 Disagree 58 78 136 Strongly Disagree 9 17 26 Total 618 842 1460   What is the probability that a female says that she strongly agreed?