The last digit of the heights of 36 statistics students were obtained as part of an experiment conducted for a class. use the frequency distribution to the right to construct a histogram.

digit frequency
0 33 1 33 2 553 554 445 336 337 448 339 33 what can be concluded from the distribution of the digits? specifically, do the heights appear to be reported or actually measured?

Mexico city, mexico, is the world's second largest metropolis and is also one of its fastest-growing cities with a projected growth rate of 3.2% per year. its population in 1991 was 20,899,000 people. use the formula p = 20.899e0.032t to predict its population p in millions with t equal to the number of years after 1991. what is the predicted population to the nearest thousand of mexico city for the year 2010?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

The sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.