Discrete & Random Variables & Normal Distribution Test
Authored by Tim Warren
Mathematics
12th Grade
CCSS covered
Used 2+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
68% of the marks in a test are between 51 and 64
Assuming this data is normally distributed, what are the mean and standard deviation?
Mean = 57
S.D. = 6.5
Mean = 57
S.D. = 7
Mean = 57.5
S.D. = 6.5
Mean = 57.5
S.D. = 13
Tags
CCSS.HSS.ID.A.4
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The mean July daily rainfall in Hulu Kinta is 10 mm and the standard deviation is 1.5 mm
Assume that this data is normally distributed.
How many days in July would you expect the daily rainfall to be less than 8.5 mm?
5
6
7
10
Tags
CCSS.HSS.ID.A.4
CCSS.HSS.MD.A.3
CCSS.HSS.MD.A.2
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
95% of students at school weigh between 62 kg and 90 kg.
Assuming this data is normally distributed, what are the mean and standard deviation?
Mean = 66 kg
S.D. = 7 kg
Mean = 76 kg
S.D. = 7 kg
Mean = 86 kg
S.D. = 7 kg
Mean = 76 kg
S.D. = 14 kg
Tags
CCSS.HSS.ID.A.4
CCSS.HSS.MD.A.3
CCSS.HSS.MD.A.2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Identify whether the experiment involves a discrete or a continuous random variable.
Rotating a spinner that has 4 equally divided parts: blue, green, yellow, and red
Discrete Random Variable
Continuous Random Variable
Tags
CCSS.HSS.MD.A.1
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Identify whether the experiment involves a discrete or a continuous random variable.
Collecting data about the mileage per liter of a certain brand and model of a car
Discrete Random Variable
Continuous Random Variable
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Identify whether the experiment involves a discrete or a continuous random variable.
Recording the number of points scored by a NBA team in each game of the 2018 season
Discrete Random Variable
Continuous Random Variable
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Identify whether the experiment involves a discrete or a continuous random variable.
Number of phone calls answered by a call center agent during his/her shift
Discrete Random Variable
Continuous Random Variable
Tags
CCSS.HSS.MD.A.1
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