The following is the probability distribution of the number of accidents in one day. X 7 8 9. 10 11 12 P(X = x) 0.13 0.21 0.09 0.33 0.12 %3D a Find the expected value of X. (d) (e) Find the variance and standard deviation of X.

Q: On the midnight shift, the number of patients with head trauma in an emergency room has the…

A: From the provided information, a) The mean can be calculated as:

Q: e. Find the standard deviation of the random variable X.

A: A random Sample of 200 residents; n=200 p=0.254

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A: Given data is  X 10 11 12 13 14 f(x) 0.4 0.3 0.2 0.05 0.05

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A:

Q: d) What is the expected value of X (E(X))? e) What is the expected value of X2? f) What is the…

A: Since there are multiple parts; only 1st 4 parts are solved.

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A:

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A: Given,   Variance =?

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A: As per our guidelines we are suppose to do only first question

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A: Given,

Q: P(x) 0.645 1. 0.297 0.052 0.005 0.001 0.000 2345

A: We have to use following formulae , Standard deviation : σ = ∑( x - μ)2p(x) Where , μ is mean μ =…

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A: we have given that  mu=3 .sigma^2=4  X~N(mu=3 , sigma^2=4) X is a normally distributed

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A: According to the given information, we have Mean = 5 P-value = 0.3015

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A:

Q: On the midnight shift, the number of patients with head trauma in an emergency room has the…

A: We have given that,  Let x be a random variable having probability mass function, x   :     0…

Q: On the midnight shift, the number of patients with head trauma in an emergency room has the…

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A:

Q: On the midnight shift, the number of patients with head trauma in an emergency room has the…

A:

Q: Calculate

A: standard deviation is denoted by σ

Q: Q4/4:The following data represent the number of damaged pieces of spare parts for the production of…

A:

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A: Aa

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A:

Q: On the midnight shift, the number of patients with head trauma in an emergency room has the…

A: Compute the value of mean. From the information, given that the probability distribution is, Thus,…

Q: The following is the probability distribution of the number of accidents in one day. x 7 8 9 10 11…

A: As per our guidelines we are suppose to answer three sub parts. X 7 8 9 10 11 12 P(X=x) 0.13…

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A: P(X ≥ x ) = P(X &gt;x) + P(X =x)                 = ∫x∞f(x)dx + 0

Q: Find the mean, variance and standard deviation for the probability distribution given below: X…

A: Given X -5 2 12 10 P(X) 0.553 0.136 0.213 0.098

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Q: 2.Find the variances if the standard deviation are: .s = 7.3 s2 %3D S- 69

A: a. s=7.3 s2=7.32   =53.29

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Q: 4.The following table contains the probability distribution of the number of traffic accidents daily…

A: The data are given,