แผ่นงานdata and statistics review
คำถามทั้งหมด: 23
แป้นคำตอบdata and statistics review
คำถามทั้งหมด: 23
60%
Over half of the students sampled were in favor of the uniforms.
, b)56.25% of the students are in favor of the uniforms.
, c)13.75% of students are opposed to the uniforms.
No, I used a proportion to find the number of students in the school who likely to prefer to play sports. 23/80 = 115/400; 115 students
Team B members generally trained for more days than Team A members because team B has a larger median
The 1st period mean is 38.75. The 2nd period mean is 35. On average, it took students in the 1st period class slightly longer to finish their homework than it did the students in the 2nd period class.
There is more variability in the number of days that Team A members trained because the IQR for Team A is greater than the IQR for Team B.
Based on the medians, plants in Group B grew more than plants in Group A.
On average, participants caught and released more fish on Day 2.
Group B has a higher median than Group A.
, b)Group B has a higher mean than Group A.
, c)Group B has more overall variability than Group A.
Eighth graders
Q1:35
Q2: 39
Q3: 46
IQR: 46 - 35 = 11
3.2
The data points are close to the mean
48
No, because the doctors asked are not a representative sample of the population of doctors.
A group of randomly selected people who come to the store in one week.
No, it does not include people who would buy cranberry muffins but do not like blueberry muffins
