3 years ago

Help please! i need get answers to 3 and 4 :)

Mathematics

1 answer:

amm18123 years ago

7 0

Answer:

2/9 and 10% those are the answers

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Maru [420]

Answer:

a^3 +r^2

Step-by-step explanation:

a is multiplied three times so it goes to a^3

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3 years ago

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According to records in a large hospital, the birth weights of newborns have a symmetric and bell-shaped relative frequency dist

Kamila [148]

Answer:

15.9% of babies are born with birth weight under 6.3 pounds.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 6.8 pounds

Standard Deviation, σ = 0.5

We are given that the distribution of birth weights is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(birth weight under 6.3 pounds)

P(x < 6.3)

$P( x < 6.3) = P( z < \displaystyle\frac{6.3 - 6.8}{0.5}) = P(z < -1)$

Calculation the value from standard normal z table, we have,

$P(x < -1) = 0.159 = 15.9\%$

15.9% of babies are born with birth weight under 6.3 pounds.

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2 years ago

What is the range of f[x]=-8x

Helga [31]

X=0 ? Hope this helps

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7. A computer company that recently developed a new software product wanted to estimate the mean time taken to learn how to use

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What company

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2 years ago

16 is 8% of what number

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Step-by-step explanation:

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