WorksheetsNormal Distribution Empirical
Total questions: 23
Worksheet time: 55mins
Then, 68% of all tires will have a life between ___________ km and __________ km.
Which interval shows 99.7% of the data given a mean of 15 and a standard deviation of 3?
9 to 21
12 to 18
6 to 24
13 to 16
What percent of the data falls within 3 standard deviations of the mean?
99.7
34
68
95
What percent of the data falls within 2 standard deviations of the mean?
99.7
34
68
95
What percent of the data falls within 1 standard deviation of the mean?
99.7
34
68
95
About what percent of the products last between 12 and 15 days?
Use the following information and the Empirical Rule to estimate the answer.
The ages of golfers are normally distributed, with a mean of 38 and a standard deviation of 4.
Find the proportion of golfers that are between 30 and 46 years old.
68%
94%
95%
99.7%
Given a mean of 75 and a standard deviation of 7, what percentage of scores are above 82?
34%
81.5%
16%
2.5%
In the diagram, about 68% of the scores fall within the shaded area, which is symmetric about the mean. The distribution is normal and scores in the area range from 50 to 80. What is the standard deviation of the scores in this distribution?
7.5
15
30
65
If the mean height is 180cm and the standard deviation is 4. What percentage of the population would lie between 176cm and 184cm?
34%
68%
95%
50%
If the mean height is 180cm and the standard deviation is 4. What percentage of the population would lie between 176cm and 180cm?
34%
68%
95%
50%
What Percent of the data lies between 60 and 90?
50%
81.5%
68%
99.7%
35 is
mean
variance
standard deviation
1st quartile
What is the standard deviation on this Normal Curve?
6
12
34
18
If this is the graph of data normally distributed with a mean of 30 and a standard deviation of 5, what label (number) is written at the blue circle?
20
15
40
30
If this is the graph of data normally distributed with a mean of 30 and a standard deviation of 5, what label (number) is written at the blue circle?
40
35
45
50
