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Viktor [21]
3 years ago
9

Can Someone Help Me With This I Beg You.​

Mathematics
1 answer:
ziro4ka [17]3 years ago
6 0
Pyramid hope this helps
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A polling agency is investigating the voter support for a ballot measure in an upcoming city election. The agency will select a
Setler79 [48]

Answer:

The value is  P( X  >  0.50) = 0.089264

Step-by-step explanation:

From the question we are told that

   The sample size is  n =  500

   The  population proportion is  p =  0.47  

     

Generally given that the sample size is sufficiently large , the mean of this sampling distribution is mathematically represented as

        \mu_x  =  p  =  0.47

Generally the standard deviation of the sampling distribution is mathematically represented as

       \sigma  =  \sqrt{\frac{p(1- p )}{ n} }

=>     \sigma  =  \sqrt{\frac{ 0.47 (1-0.47  )}{ 500 } }

=>     \sigma  = 0.0223

Gnerally the probability that the proportion of voters in the sample of Region A who support the ballot measure is greater than 0.50 is mathematically represented as

          P( X  >  0.50) =  P( \frac{ X - \mu  }{ \sigma }  >  \frac{ 0.50 - 0.47 }{ 0.0223 } )

\frac{X -\mu}{\sigma }  =  Z (The  \ standardized \  value\  of  \ X )

=>        P( X  >  0.50) =  P( Z> 1.3453  )

From the z table  the area under the normal curve to the left corresponding to  1.3453   is

          P( Z> 1.3453  ) =  0.089264

So  

          P( X  >  0.50) = 0.089264

8 0
3 years ago
This is super hard help and I will give a thnxs
Sladkaya [172]
42|2
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The combination is <span>237.</span>
3 0
3 years ago
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Freshman: 3 applications
svlad2 [7]

Answer:

150

Step-by-step explanation:

3 *5*2*5 =150

5 0
3 years ago
Lara has $1,425 in her bank account. Write and solve an equation to show how much money she started with if that amount reflects
makkiz [27]

1,425 + 14% = 1,425.14

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3 years ago
Write the inequality:<br><br> Two less than twice a number is less than a half.
Art [367]

Answer:

2x-2<1/2

Step-by-step explanation:

when the problem says "two less than" it means we are subtracting 2 from something, in this case, that something is "twice a number" as the problem states. So we would write 2x where x is a variable that represents any number so we have 2x-2<1/2.

3 0
3 years ago
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