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AP STATISTICS: Section 6.3 Worksheet Binomial Distribution
Name: ______________________________________
Let X be a random variable with a binomial distribution. Use the TI-83/84/89’s binompdf or binomcdf commands to find the following
probabilities. Write the command that you are using for each problem.
1.
n
(number of
trials)
12
p
(probability of
success on 1 trial)
0.4
FIND:
𝑃(𝑋 ≤ 3)
2.
12
0.4
𝑃(𝑋 < 5)
3.
15
0.25
𝑃(𝑋 > 7)
4.
15
0.25
𝑃(𝑋 ≥ 7)
5.
30
0.85
𝑃(12 ≤ 𝑋 ≤ 20)
6.
16
0.7
𝑃(𝑋 = 8 𝑜𝑟 𝑋 = 12)
7.
9
2
3
𝑃(𝑋 ≥ 4)
8.
12
1
6
𝑃(2 ≤ 𝑋 < 10)
Calculator Command
ANSWER
(3 digits)
Answers:
1) 0.225
2) 0.438
3) 0.017
4) 0.057
5) 0.010
6) 0.254
7) 0.958
8) 0.619