2 3 4 Temperature F 3538 3942 4346 4750 5154 5558 5962 Use t

2.

3.

4.

Temperature (F) 35-38 39-42 43-46 47-50 51-54 55-58 59-62 Use the given frequency distribution to find the (a) class width (b) class midpoints (c) class boundaries 47-50 51-54 55-58 59-62 48.5 52.5 56.5 60.5 (c) What are the class boundaries? Complete the table below. (Type integers or decimals.) Temperature F) 35-38 39-42 43-46 47-50 51-54 55-58 59-62 Fr Class boundaries

Solution

1.

a. The class width is 4

b.Class mid points are 36.5, 40.5. 44.5, 48.5, 52.5, 56.5, 60.5

c. Class boundries are : 34.5 - 38.5, 38.5 - 42.5, 42.5-46.5, 46.6-50.5, 50.5 - 54.5, 54.5-58.5, 58.5-62.5,

2. Mid Point is 28, Relative Frequency = 0.112, CF = 59

3. a. No. of classes = 7

3.b. Least Frequency = 10

3.c. Highest frequency = 270

3.d. Class width = 10

4. a. approximate numbers in the sample is 16

4.b. The location of greatest change in frequency is 24.5

5. Cumulative freqency of weight of 27.5 pounds is 41

6.a. Boumdries of the class with greatest relative frequency is 19 - 20 minutes