# A Level Maths Binomial Distribution Q.Watch

#1

The random variable X ~ B(50, 0.40). Find:
a) the largest value of k such that P(X ≤ k) < 0.05,
b) the smallest number r such that P(X > r ) < 0.01

Thank you.
0
1 week ago
#2
Hey contact me over my email
0
1 week ago
#3
(Original post by OneOfTheBillions)

The random variable X ~ B(50, 0.40). Find:
a) the largest value of k such that P(X ≤ k) < 0.05,
b) the smallest number r such that P(X > r ) < 0.01

Thank you.
Use normal approximation
0
1 week ago
#4
(Original post by esrever)
Use normal approximation
mo need. and this would cause most students more of a problem dealing with the continuity correction issue.
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1 week ago
#5
(Original post by begbie68)
mo need. and this would cause most students more of a problem dealing with the continuity correction issue.
Okay then trial and error maybe
0
1 week ago
#6
Use the calc binomial distribution function, or the tables.
No need for trial and error (better would be trial and improvement!)
0
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