A binomial event has n = 60 trials. The probability of success for each trial is 0.20. Let x be the number of successes of the event during the 60 trials. What are μx and σx? 48 and 3.0984 48 and 2.1909 60 and 3.0984 12 and 3.0984 12 and 2.1909

12 and 3.0984

Step-by-step explanation:

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The expected value of the binomial distribution is:

The standard deviation of the binomial distribution is:

A binomial event has n = 60 trials. The probability of success for each trial is 0.20.

So we also have p = 0.2.

Then

[tex]\sigma_{x} = \sqrt{60*0.2*0.8} = 3.0984

So the correct answer is

12 and 3.0984

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)

1 mph

step-by-step explanation:

if the question is asking how much does she drive per mile then,

13 / 13 = 1 mph