The scatter plot below displays the ages of a group of students and the amount of time each student spends contacting friends. Which statement is true, based on the data
shown?
Time Spent Contacting Friends
The scatter plot shows several clusters of
data.
There is no clear association between age
and time.
Time (minutes)
There is a strong positive association between
age and time.
Age (years)
The three data points on the top right are
outliers.

The scale for a map is 20 miles = 1/2 inch. the distance between two towns on the map is 3 3/4 inches. what is the actual distance between these towns? 150 miles 38 miles 75 miles 135 miles

Using the rise/run counting method, the slope of the line is

People end up tossing 12% of what they buy at the grocery store. assume this is the true population proportion and that you plan to take a sample survey of 540 grocery shoppers to further investigate their behavior. a. calculate the mean and the standard error for the sample proportion p. b. describe the sampling distribution of p in part a. draw a graph of this probability distribution with its mean and standard deviation. what is the probability that your survey will provide a sample proportion more than 15%? c. d. population proportion? what is the probability that your survey will provide a sample proportion within + 0.03 of the