!Example 1.19 In a fifth grade class, the teacher was interested In the average age and the sample standard deviation of the ages of her students. The following data are the ages for a ! SAMPLE of n =...

PLEASE SOLVE
EXAMPLE 1.20 ONLY

PLEASE SOLVE
EXAMPLE 1.20 ONLY

PLEASE SOLVE
EXAMPLE 1.20 ONLY

Extracted text: !Example 1.19 In a fifth grade class, the teacher was interested In the average age and the sample standard deviation of the ages of her students. The following data are the ages for a ! SAMPLE of n = 20 fifth grade students. The ages are rounded to the nearest half year: %3D %3D 19; 9.5; 9.5; 10; 10; 10; 10; 10.5; 10.5; 10.5; 10.5; 11; 11; 11; 11; 11; 11; 11.5; 11.5; 11.5; B社リ9 %3D %3D 3D Determine the standard devlation of the gasoline consumption in Example 1.2. Example 1.20 - PS # # 15 Gasoline Consumption In miles/ gallon Tally No. of cars (I requency.f) Relative Frequency 22.5-22.9 %3D 0.050 23.0 - 23.4 II 0.075 23.5-23.9 0.175 24.0-24.4 T-1II 0.200 24.5-24.9 14 0.350 25.0- 25.4 TTH 0.125 25.5-25.9 0.025 sum 40 1.000