
7.1 Team Challenge (B)
Authored by Kevin Koch
Mathematics
11th - 12th Grade
CCSS covered
Used 5+ times

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4 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Given that a set of data with a normal distribution has a mean of 20.3 and standard deviation of 4.1. 68% of the data falls between what two values?
(20.3, 28.5)
(12.1, 24.4)
(16.2, 24.4)
(16.2, 28.5)
Tags
CCSS.HSS.ID.A.4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A radar unit is used to measure speeds of cars on a motorway. The speeds are normally distributed with a mean of 85 km/hr and a standard deviation of 10 km/hr. What percent of the speeds measured are greater than 95 km/hr?
16%
27%
34%
47.5%
Tags
CCSS.HSS.ID.A.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A large group of students took a test in Physics and the final grades have a mean of 80 and a standard deviation of 10. If we can approximate the distribution of these grades by a normal distribution, what percent of the students failed (< 60) or got a "A" (> 90)?
4.7%
18.5%
13.5%
27%
Tags
CCSS.HSS.ID.A.4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Given that a set of data with a normal distribution has a mean of 20.3 and standard deviation of 4.1. What percent of the data is inside the range 12.1 to 32.6?
68%
81.5%
95%
97.35%
Tags
CCSS.HSS.ID.A.4
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