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nikklg [1K]
3 years ago
11

When solving proportions we set the cross products equal and then we do what

Mathematics
2 answers:
WINSTONCH [101]3 years ago
8 0
We cross multiply and then divide
tangare [24]3 years ago
3 0
Multiply across  for example 3/20= x/100

3*100=300
x*20=20x

then divide by 20 on each side
300/20=15

15=x
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In a certain​ country, the mean birth weight for boys is 3.27 ​kg, with a standard deviation of 0.51 kg. Assuming that the distr
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Answer:

0.066

Step-by-step explanation:

We solve this question using z score formula

z = (x-μ)/σ, where

x is the raw score

μ is the population mean

σ is the population standard deviation

For the question

mean birth weight for boys is 3.27 ​kg, with a standard deviation of 0.51 kg.

x = 2.5

Hence:

z = 2.5 - 3.27/0.51

z = -1.5098

Probability value from Z-Table:

P(x ≤ 2.5) =P(x < 2.5) = P(x = 2.5) =

=0.065547

Therefore, the proportion of baby boys that are born with a low birth weight is 0.066

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3 years ago
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guajiro [1.7K]

Answer:

F

Step-by-step explanation:

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3 years ago
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tino4ka555 [31]

Step-by-step explanation:

it say the answer is 4 but I don't know how

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3 years ago
What is true of the data in the dot plot? Check all that apply.
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Answer:

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Step-by-step explanation:

Edge2021

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Step-by-step explanation:

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