Statistics Homework # 8 Date Name Recreational skiing is big business in some of

Question

Statistics Homework # 8 Date Name Recreational skiing is big business in some of the western and New England states. Snow Country described the 35 top-rated ski areas and gave the percentage of the skiing terrain that was at the more difficult level in the table below: 49 60 51 59 43 43 51 54 45 35 28 36 40 57 49 20 58 30 30 50 25 65 52 65 Order the data into an ascending data array at ten numbers per row: Each letter in the data array is equal to 5 points Set up a frequency table using 5 classes: For the values in the frequency class, write the first number, followed by a space, followed by the less than symbol, followed by a space, followed by the econd number. For the values in the for frequency column, simply enter the single numeric value. The range quoted for each frequency class is equal to 5 points. The fvalue for each row is equal to 4 points. Skiing Terrain at the more difficult level 10 points Determine the median class: 9 points Determine the modal class:

Explanation / Answer

So, here the ranage of the data is : r= 65-20=45

So, The class width will be: c= r/5 = 9.

Frequency table:

Here total frequency (n)=35.

n/2=17.5.

we can observe that the class 40-49 has the 17th and 18th observation. So, the class 40-49 is the median class.

Again the class40-49 has the highest frequency. So this is the modal class also.

20 25 28 30 30 30 33 35 36 40 40 40 40 40 40 43 43 45 46 46 49 49 50 51 51 52 54 55 57 58 59 60 60 65 65

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