Empirical Rule Practice

Quiz
•
Mathematics
•
12th Grade
•
Hard
Anthony Clark
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
According to the empirical rule, what percentage of data falls within 1 standard deviation of the mean?
25%
68%
95%
99.7%
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
What percent of a normal distribution lies outside of ±3 standard deviations?
99.7%
.15%
.3%
100%
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
According to the empirical rule, how much of the data falls within 2 standard deviations of the mean?
25%
68%
95%
99.7%
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
According to the empirical rule, how much of the data falls within 2 standard deviations?
25%
68%
95%
99.7%
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a factory, the weight of the concrete poured into a mold by a machine follows a normal distribution with a mean of 1150 pounds and a standard deviation of 22 pounds. Approximately 99.7% of molds filled by this machine will hold weights in what interval?
1084 to 1216 pounds
1106 to 1150 pounds
1106 to 1194 pounds
1128 to 1172 pounds
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The shelf life of a particular dairy product is normally distributed with a mean of 12 days and a standard deviation of 3 days.
About what percent of the products last between 12 and 15 days?
68%
34%
16%
2.5%
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What percent of people within 3 standard deviations of the mean?
99.7
34
68
95
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