Question

How long does it take to finish the 1161-mile Iditarod Dog Sled Race from Anchorage to Nome, Alaska? Finish times (to the nearest hour) for 57 dogsled teams are shown below.

261	271	236	244	279	296	284	299	288
288	247	256	338	360	341	333	261	266
287	296	313	311	307	307	299	303	277
283	304	305	288	290	288	289	297	299
332	330	309	328	307	328	285	291	295
298	306	315	310	318	318	320	333	321
323	324	327

For this problem, use five classes.

(a) Find the class width.

(b) Make a frequency table showing class limits, class boundaries, midpoints, frequencies, relative frequencies, and cumulative frequencies. (Give relative frequencies to 2 decimal places.)

Class Limits	Class Boundaries	Midpoint	Frequency	Relative Frequency	Cumulative Frequency
− − − − −	− − − − −

(c) Draw a histogram.

(d) Draw a relative-frequency histogram.

(e) Categorize the basic distribution shape.

skewed leftskewed right    uniformmound-shaped symmetricalbimodal

(f) Draw an ogive. (Graph each point and the closed line segments connecting the points to create your graph.)

Answer 1

answered by: anonymous