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elena-s [515]
2 years ago
6

The lunch choices last Friday were mushroom or pepperoni pizza. The cafeteria made 8

Mathematics
2 answers:
vova2212 [387]2 years ago
7 0

al chile no se no ablo inglés

Anna11 [10]2 years ago
6 0

Answer:

5%, 6%

or 6.4%, 5.76%

i dont know

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2. The mean birth weight of a full term boy born in the US is 7.7 lbs, with standard deviation of 1.1 lbs. A. Find the probabili
Fed [463]

Answer:

A

The value is P( X  <  7 ) =0.26226

B

The value is P( X  <  7 ) = 0.00073

Step-by-step explanation:

From the question we are told that

  The population mean is  \mu = 7.7 lbs

   The standard deviation is \sigma  = 1.1 \ lbs

  The sample size is  n =  25

Generally the probability that a boy born full term in the US weighs less than 7 lbs is mathematically represented as

     P( X  <  7 ) =  P( \frac{X - \mu }{\sigma}  <  \frac{7 - 7.7 }{1.1 } )

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

=>   P( X  <  7 ) =  P(Z

From the z table  the area under the normal curve to the left corresponding to    -0.6364  is

    P(Z

=>   P( X  <  7 ) =0.26226

Generally the standard error of mean is mathematically represented as  

       \sigma_{x} = \frac{\sigma }{\sqrt{n} }

=>     \sigma_{x} = \frac{ 1.1  }{\sqrt{25} }

=>     \sigma_{x} = 0.22

Generally the probability that the average weight of 25 baby boys born in a particular hospital have an average weight less than 7 lbs is mathematically represented as

         P( \= X  <  7 ) =  P( \frac{\= X - \mu }{\sigma_{x}}  <  \frac{7 - 7.7 }{ 0.22 } )

=>      P( X  <  7 ) =  P(Z

From the z table  the area under the normal curve to the left corresponding to    -3.1818  is

=>      P(Z

=>      P( X  <  7 ) = 0.00073

4 0
2 years ago
This picture shows a cube and its net
fenix001 [56]

The formula is 6 a^2

6 x (11^2)

11 x 11=121

6 x 121 = 726

So 726 is your answer

5 0
3 years ago
Read 2 more answers
Classify the expression, name the operation(s) and identify any variables. 3s – 5
Elodia [21]
Numerical, subtraction, s
8 0
2 years ago
Please help me on this math problem
Fed [463]
We know the first term is 16, because f(1) = 16. Next, we can use the recursive rule provided. f(3)=1/2*f(3-1). This gives us f(3)=1/2*f(2). We know f(2) is 8. We know have f(3)=1/2*8. This is 4.

The answer is 16, 4.
7 0
2 years ago
PLS HELP 20 POINTS!! WILL GIVE BRAINIEST
umka2103 [35]
B- 18 units to the left of zero
7 0
2 years ago
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