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MariettaO [177]

3 years ago

9

The heights of North American women are nor-mally distributed with a mean of 64 inches and a standard deviation of 2 inches. a.

b. c. What is the probability that a randomly selected woman is taller than 66 inches

1 answer:

serious [3.7K]3 years ago

5 0

Answer:

0.1587

Step-by-step explanation:

Given the following :

Mean (m) of distribution = 64 inches

Standard deviation (sd) of distribution = 2 inches

Probability that a randomly selected woman is taller than 66 inches

For a normal distribution :

Z - score = (x - mean) / standard deviation

Where x = 66

P(X > 66) = P( Z > (66 - 64) / 2)

P(X > 66) = P(Z > (2 /2)

P(X > 66) = P(Z > 1)

P(Z > 1) = 1 - P(Z ≤ 1)

P(Z ≤ 1) = 0.8413 ( from z distribution table)

1 - P(Z ≤ 1) = 1 - 0.8413

= 0.1587

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Answer:

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Step-by-step explanation:

Given:

Fuel tank contains 1 3/4 gallons of gasoline.

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<u>According to question:</u>

By adding we get the total gallons of gasoline now tank contain:

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3 years ago

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MakcuM [25]

Answer:

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Step-by-step explanation:

Y = 2x is a <u>proportional</u> relationship because it follows the form y = kx, where k = constant of proportionality. Proportional relationships intersect the y-axis at (0,0), thus having a y-intercept of 0, but we usually don't write the 0.

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Have a lovely rest of your day/night, and good luck with your assignments! ♡

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2 years ago

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KonstantinChe [14]

Answer:

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Step-by-step explanation:

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Given:

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Magnitude of a vector $v=\left$ is:

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Dot product of two vector $v_1=\left$ and $v_2=\left$ is:

$v_1\cdot v_2=a_1a_2+b_1b_2$

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$Proj_vu=\dfrac{u\cdot v}{|v|^2}v$

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Answer:

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Step-by-step explanation:

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