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Hoochie [10]
2 years ago
10

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
Mathematics
2 answers:
babunello [35]2 years ago
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]2 years ago
3 0

Answer:

A. 30 and 3.4641

Step-by-step explanation:

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I'm sure you can do the division and make an integer out of that.

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8 0
3 years ago
the number 2 in the expression 5+2x is called the coefficient of x how does changing the coefficient to 6 change the meaning of
anzhelika [568]

Answer:

11

Step-by-step explanation:

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8 0
2 years ago
Bottle A contains 4 ounces of water, which is 25% of the amount of water in Bottle B. How much water is there in Bottle B?
sveticcg [70]

Answer:

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Step-by-step explanation:

we have that

A≡0.25B (25%), if A=4 ounces  then B=4/0.25 = 16 ounces

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6 0
2 years ago
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Maslowich

Answer:

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Step-by-step explanation:

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8 0
3 years ago
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