Ms. Chemistry gave a 10-item test in Statistics to eight students and obtained the following scores: 6, 4, 3, 6, 5, 8, 4, 5 Variance = SD

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ACTIVITY 5. Find the variance and standard deviation:
1. Ms. Chemistry gave a 10-item test in Statistics to eight students and obtained the
following scores: 6, 4, 3, 6, 5, 8, 4, 5
Variance=
SD=
2. Ten students took a physical fitness test in their P.E. class as part of the performance
task. The scores obtained are as follows: 82, 85, 90, 81, 95, 80, 78, 82, 89, 92
Variance =
3. The following scores were obtained by Grade 8- Bonifacio in a 15-item test in Biology:
Boys: 10, 11, 14, 7, 10, 8, 9, 11
SD =
Girls: 10, 8, 6, 12, 4, 8, 11, 3, 8, 11, 15, 7
a. Find the standard deviation for the boys. Answer:
b. Find the standard deviation for the girls. Answer:
c. Find the standard deviation for the whole class. Answer:
Transcribed Image Text:ACTIVITY 5. Find the variance and standard deviation: 1. Ms. Chemistry gave a 10-item test in Statistics to eight students and obtained the following scores: 6, 4, 3, 6, 5, 8, 4, 5 Variance= SD= 2. Ten students took a physical fitness test in their P.E. class as part of the performance task. The scores obtained are as follows: 82, 85, 90, 81, 95, 80, 78, 82, 89, 92 Variance = 3. The following scores were obtained by Grade 8- Bonifacio in a 15-item test in Biology: Boys: 10, 11, 14, 7, 10, 8, 9, 11 SD = Girls: 10, 8, 6, 12, 4, 8, 11, 3, 8, 11, 15, 7 a. Find the standard deviation for the boys. Answer: b. Find the standard deviation for the girls. Answer: c. Find the standard deviation for the whole class. Answer:
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