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tia_tia [17]
3 years ago
6

​ Per vehicle mile, motorcyclists are ____ times more likely to die in a crash than passenger car occupants.

Health
2 answers:
Fittoniya [83]3 years ago
8 0

Answer  28

Explanation:

28 times more according to the National Highway Traffic Safety Administration (NHTSA) for 2016

shutvik [7]3 years ago
3 0

<u>ANSWER:</u>

Per vehicle mile, motor-cyclists are "35 times" more likely to die in a crash than those traveling by car.

<u>EXPLANATION:</u>

  • Motor-cyclists usually drive at a very fast speed and also do not follow the traffic norms.
  • For motor-cyclists, the only protection is a helmet while those traveling in a car are protected from all four sided by the car body and other security equipment installed in cars.
  • This is one of the main reasons why very few motor-cyclists survive crashes.  
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A pharmacist receives a shipment of 22 bottles of a drug and has 4 of the bottles tested. If 6 of the 22 bottles are contaminate
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Explanation:

A hypergeometric distribution as a function of statistical distribution where members from two groups are analysed,  without replacing those members. Unlike binomial distributions, in which the probability remains the same for each trial, in hypergeometric distributions, these members are not replaced- each trial's probability affects the probability within next trial.

This is used in the process of random sampling and as a means of quality control in statistics; for example selecting members of a sports team from a mixed population of boys and girls.

Hypergeometric Formula..,

For a population consisting of N items, k are successes. And a random sample from that population consisting of n items, x of which are successes.

∴ hypergeometric probability is:

h(x; N, n, k) = [ kCx ] [ N-kCn-x ] / [ NCn ]

this distribution always has... 

  • its mean=  n * k / N .
  • its variance  is n * k * ( N - k ) * ( N - n ) /  [ N2 * ( N - 1 ) ] .

Thus….

Total number of bottles =  22

Number of contaminated bottles = 6

Number of tested bottles = 4

X= a random variable representing the number of contaminated bottles selected for the test.

N = 22

K = 6

n = 4

The probability mass function, f(x), is given by...

P(X=x)) = [ kCx] [ N-kCn-x ] / [ NCn ]    x= 0,1,2,3,...,n

           = \frac{[6 C 1] [22-6 C 4-1]}{[22 C 4]}

OR          

\frac{C\left \ {{k=6} \atop {x=1}} \right.   C\left \ {{22-6} \atop {4-1}} \right. }{C \left \ {22} \atop {4}} \right. }

Cxk= C14= 4!(1!(4 - 1)!)^{-1}= 24(6)^{-1}= 4\\Cn-xN-k=C\left \ {{22-6} \atop {4-1}} \right. } =16!(4!(16-4)!)^{-1}\\(CnN)^{-1}=(C \left \ {{y=22} \atop {x=6}} \right. ) ^{-1}=[22!(6!(22-6)!)^{-1}]^{-1}

f(x)= p= P(X=1)=0.45933014354067

P(that more than 1 of the tested bottles is contaminated);

P(X>1)=1−P(X≤1)=1−(P(X=0)+P(X=2))

                P(X>1)=0.291866028708134

Probability that one is contaminated: 0.4593(4 dec places)

Probability that more than one is contaminated: 0.2919 (4 dec places)

Learn more about calculating probability at brainly.com/question/4021035

Learn more about calculating event probability at brainly.com/question/6649771

#LearnWithBrainly

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