1 answer:
Answer:
30.5
Step-by-step explanation:
here :
n <u><em>represents the number of trials</em></u>
p <u><em>represents the probability of success</em></u>
In a binomial distribution, The mean
is equal to the product of those two values.
In other words,
The mean = n × p
= 122 × 0.25
= 30.5
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