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40) A random sample of 30 highschool students is selected. Each student is asked how many hours he or she spent on the I
Posted: Mon Sep 06, 2021 7:11 am
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- 40 A Random Sample Of 30 Highschool Students Is Selected Each Student Is Asked How Many Hours He Or She Spent On The I 1 (31.84 KiB) Viewed 69 times
40) A random sample of 30 highschool students is selected. Each student is asked how many hours he or she spent on the Internet during the previous work. The results are shown in the histogram. Estimate the sample standard deviation fx ls /P1x-x)? 6 5 Kunbou NO 170125/45 140 20 22 129 56 8 11 12 13 9 10 Hour 5 20 6580 142 8 540 91436 14 10 12 20 11 22 12 18 6 1310 6 C) 26 hr 1412 95 70 288 A) 2.4 hr B) 2.2 hr 26) 2011 235 1.9 Page 36 30 -8 Copyright 2019 by Pearson Education, Inc. All Rights Reserved.