Use the grouped data formulas to find the indicated mean or standard deviation.
-A random sample of 30 high school students is selected. Each student is asked how many hours he or she spent on the Internet during the previous week. The results are shown in the histogram. Estimate the sample
Standard deviation.
A)2.4 hr
B)2.2 hr
C)2.6 hr
D)2.0 hr

Question

Use the grouped data formulas to find the indicated mean or standard deviation.
-A random sample of 30 high school students is selected. Each student is asked how many hours he or she spent on the Internet during the previous week. The results are shown in the histogram. Estimate the sample
Standard deviation. 
A)2.4 hr 
B)2.2 hr 
C)2.6 hr 
D)2.0 hr

Quizplus · Accepted Answer

The Answer of Use the grouped data formulas to find the indicated mean or standard deviation.
-A random sample of 30 high school students is selected. Each student is asked how many hours he or she spent on the Internet during the previous week. The results are shown in the histogram. Estimate the sample
Standard deviation. 
A)2.4 hr 
B)2.2 hr 
C)2.6 hr 
D)2.0 hr

Use the Grouped Data Formulas to Find the Indicated Mean