Answer: D
Step-by-step explanation:
We know that the line is shaded below, so it represents .
Similarly, the line is shaded above, so it represents .
it is 21 :)))))))))))))))
A.
30+40+50+60= 180
180 divided by 4equals 45
Their fore the answer is A
Answer: p=2
Step-by-step explanation:
Answer:
P(X = 4) = 0.1876
Step-by-step explanation:
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
In this question:
We want P(X = 4). So