Download LT 13.10 I can use normal distribution to calculate probability.

LT 13.10 I can use normal distribution to calculate probability.
AA Stat Practice
Name: ________________________
Palindrome
5/18/15
1. In a normal distribution, about what percent of the data are within one
standard deviation of the mean?
A) 16%
B) 34%
C) 68%
D) 95%
2. A normal curve is shaped like a symmetric bell centered around the _______.
A) mode
B) mean
C) median
D) range
A set of data has a normal distribution with a mean of 5.1 and a standard
deviation of 0.9. Find the percent of data within each interval.
3. from 4.2 to 5.1
4. From 6.0 to 6.9
5. greater than 6.9
6. A normal distribution has a mean of 700 and a standard deviation of 35. What is the
probability that a value selected at random is at most 630?
7. Scores on an exam are distributed normally with a mean of 76 and a standard deviation
of 10. Out of 230 tests, about how many students score above 96?
8. The heights of the girls in a school choir are distributed normally, with a mean of 64 and a
standard deviation of 1.75. If 38 girls are between 60.5 in. and 67.5 in. tall, how many girls
are in the choir? Show your work.