
Review Part 1
Authored by Joanna Valalis
Mathematics
12th Grade
Used 10+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 3 pts
What is the mean, median, and mode of the data set 20, 20, 30, 40, 40, 40, 50, 50, 60, 70, 70, 80, 90, 90?
Mean: 55, Median: 40, Mode: 53
Mean: 53.6, Median: 53, Mode: 40
Mean: 55, Median: 40, Mode: 50
Mean: 53.6, Median: 50, Mode: 40
2.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
What is the variance and standard deviation of the data set 7, 10, 14, 19, 22, 23, 26, 28, 30, 35?
Variance: 21.4, Standard deviation: 8.51
Variance: 72.44, Standard deviation: 21.4
Variance: 8.51, Standard deviation: 72.44
Variance: 72.44, Standard deviation: 8.51
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What are the values 2 standard deviations above and below the mean for the data set 7, 10, 14, 19, 22, 23, 26, 28, 30, 35?
4.38 and 38.42
12.89 and 29.91
17.15 and 25.65
20.4 and 22.4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Every 5th person entering a mall is asked why they are shopping there. What type of sample is this?
Convenience sample
Random sample
Self-selected sample
Systematic sample
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A kindergarten teacher wants to determine whether his students prefer colored pencils or crayons. What is the best way for him to conduct an experiment?
The teacher gives the students questionnaires asking questions about their coloring preferences
The teacher monitors the students’ preferences during coloring time.
The teacher gives colored pencils to half of his students and crayons to the other half, then records the amount of time they each spend coloring.
The teacher only provides colored pencils during coloring time and records the number of times his students ask for crayons.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Your school wants to determine what sports should be played in physical education classes. What sample would be least biased?
30 students from one of the classes
30 students selected at random
30 students who volunteer to make suggestions
30 students who spend the most time in the gym
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