Finish times (to the nearest hour) for 10 dogsled teams are shown below. Make a frequency...

Finish times (to the nearest hour) for 10 dogsled teams are shown below.

Make a frequency table showing class limits, class boundaries, midpoints, frequency, relative frequencies, and cumulative frequencies. Use three classes.

(Round your answer for relative frequency to one decimal place and for midpoint to the nearest whole number.) 283 265 236 310 275 301 287 258 299 280

Solutions

Expert Solution

Step 1 : Arrange the data in ascending order.

Step 2 : Find the differenece between the maximum and minimum value and divide by number of intervals

Max = 236
Min = 310
Class width = (310-236)/3= 25 .We shall use 30 as the to include the last value in the interval

Hence we start with 230 and add 30 to get the first class interval (230 to 260)
The remaining class interval are shown below.

Step 3: The class boundary, mid point calculation are shown below.

Step 4. To find the frequency, check which point fall in which interval and count the number of observation in each boundary.
This shown below.

milcah answered 10 months ago

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