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3 years ago

in sports club there are 800 members . the ratio of soccer members to social members is 5to 3 how many soccer players are there

1 answer:

5 0

5:3

5+3=8
8 units

800=8 units
divide oth sides by 8
100=1 units

soccer=5 units=5 times 100=500
social=3 units=3 times 100=300

500 soccer players

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Savatey [412]

Answer:

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Step-by-step explanation:

The success, with 41% of probability of occurring, is that the employee believes the company's president possesses low ethical standards. For more than 8 and less than 12 successes, it means the probability of having 9, 10 or 11 successes (all these summed).

The formula is:

$b(x;n,p)= \ _nC_x*p^x*(1-p)^{n-x}$

Where x is the number of successes,n the number of trials, p the probability of success, $_nC_x$ refers to the combinations that can occur, and it's formula is:

$_nC_x=\frac{n!}{x!(n-x)!}$

Calculating each case:

$b(9,20,0.41)=\frac{20!}{9!(20-9)!}*0.41^9*(1-0.41)^{20-9}=0.1658$

$b(10,20,0.41)=\frac{20!}{10!(20-10)!}*0.41^{10}*(1-0.41)^{20-10}=0.1267$

$b(11,20,0.41)=\frac{20!}{11!(20-11)!}*0.41^{11}*(1-0.41)^{20-11}=0.0801$

Adding each case:

$P=0.1658+0.1267+0.0801= 0.3726$

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3 years ago

Can someone help me? <br><br> My teacher said to put in simplisit form. and not to estimate.

maw [93]

Sorry, but I don't really feel like doing all of them right now. Instead, heres a tool to help you out with that. Use the mixed numbers calculator and it'll simplify everything for you.

https://www.calculator.net/fraction-calculator.html

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Step-by-step explanation:

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Plug x value into both expressions and see if it checks out

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Answer:

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