A binomial event has n = 50 trials. The probability of success for each trial is 0.60. Let x be the number of successes of the e
vent during the 50 trials. What are μx and σx?
30 and 3.4641
30 and 5.4772
20 and 3.4641
20 and 5.4772
50 and 3.4641
2 answers:
Answer:
30 and 3.4641
Step-by-step explanation:
The mean of a binomial distribution is:
μ = np
And the standard deviation of a binomial distribution is:
σ = √(npq)
Here, n = 50, p = 0.60, and q = 0.40.
μ = np = 50 × 0.60 = 30
σ = √(npq) = √(50 × 0.60 × 0.40) = 3.4641
Answer:
A. 30 and 3.4641
Step-by-step explanation:
You might be interested in
Answer:1.0709
Step-by-step explanation:
Answer:
-39/2 or -19 1/2
Step-by-step explanation:
Multiply the cost per mile by number of miles “m” and add that amount to the $50:
Total = 3m + 50
I supppose the answer is F(X)=X²+4， you can use the vertex to confirm.
Answer:
Step-by-step explanation:
