Practice with Normcdf & InvNorm
Authored by Jordan McCain
Mathematics
University
CCSS covered
Used 11+ times
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9 questions
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1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
A set of shirt prices are normally distributed with a mean of 45 dollars and a standard deviation of 5 dollars.
What proportion of shirt prices are between 37 dollars and 59.35 dollars?
Tags
CCSS.HSS.ID.A.4
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
A set of chemistry exam scores are normally distributed with a mean of 70 points and a standard deviation of 5 points.
What proportion of exam scores are between 68 and 73 points?
Tags
CCSS.HSS.ID.A.4
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
A set of sofa prices are normally distributed with a mean of 2500 dollars and a standard deviation of 200 dollars. A leather sofa has a price of 2410 dollars.
What proportion of sofa prices are higher than the price of the leather sofa?
Tags
CCSS.HSS.ID.A.4
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
A set of chemistry exam scores are normally distributed with a mean of 70 points and standard deviation of 4 points. Cam got a score of 65 points on the exam.
What proportion of exam scores are higher than Cam's score?
Tags
CCSS.HSS.ID.A.4
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
A set of biology exam scores are normally distributed with a mean of 60 points and a standard deviation of 6 points. Annie got a score of 51 points on the exam.
What proportion of exam scores are lower than Annie's score?
Tags
CCSS.HSS.ID.A.4
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
A set of middle school student heights are normally distributed with a mean of 150cm and a standard deviation of 20cm. Ian is a middle school student with a height of 165cm.
What proportion of student heights are lower than Ian's height?
Tags
CCSS.HSF-LE.A.1B
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
The distribution of waist circumferences of US adult men randomly selected for a research study was approximately normal with a mean of 94cm and a standard deviation of 11cm.
A clothing store that specializes in serving larger men aims to sell clothing that will fit men with the top 35% of waist circumferences.
What is the minimum waist circumference of men whom the store aims to serve? (Round to the nearest whole number.)
Tags
CCSS.HSS.ID.A.4
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