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NCEA L2 Two Way Table and Risks Flashcards | StudBud
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NCEA L2 Two Way Table and Risks
NCEA L2 Two Way Table and Risks
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110 plays
Two #twowaytable #statistics #frequency #probability #relativefrequency
Flashcards
14 cards
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Practice quiz
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Questions
14
Answers
1
What is the percent of total people that preferred high school?
36%
33%
73%
51%
2
What proportion of year 13 students passed the exam?
853/1500
1120/1500
347/380
853/1120
3
What percent of total people were boys who preferred high school?
17%
68%
51%
38%
4
What is the relative risk of year 12 student failing the exam compared to year 13?
higher risk. as 2.75 times as likely
equally likely risk
lower risk. as 0.3636 times as likely
no risk
5
An exam results shown here. What proportion of students is Year 12 AND passed the exam?
853/1500
380/1500
347/380
347/1500
6
What percent of people who preferred middle school were boys?
8%
67%
50%
32%
7
How many hearts do octopuses have?
5
2
8
3
8
What proportion of the class are girls?
16/45
25/40
20/45
16/20
9
How many stomachs do cows have?
2
4
3
1
10
What is the relative risk of year 13 student failing the exam compared to year 12?
equally likely risk
higher risk. as 2.75 times as likely
no risk
lower risk. as 2.75 times as likely
11
Pick two students from the sample. Find the probability to pick to two year 13 students who failed, in a row
(267/1500)2
(267/1120)2
(267/1500)x(266/1499)
(267/1200)x(266/1199)
12
What is the risk of year 13 student failing the exam?
267/1500
300/1500
33/380
267/1120
13
What is the risk of year 12 student failing the exam?
33/1500
347/380
33/380
380/1500
14
What proportion of girls prefer middle school?
16/20
12/45
4/20
4/12
