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

Question

3 years ago

10

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:

babunello [35] · Answer 1 · 2022-08-24T02:08:38+03:00

3 0

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

guapka [62] · Answer 2 · 2022-08-24T03:19:08+03:00

3 0

Answer:

A. 30 and 3.4641

Step-by-step explanation: