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8090 [49]
3 years ago
8

For the women age 18-24 in HANES2, the average height was about 64.3 inches; the SD was about 2.6 inches. Express each height in

standard units. (Decimal form; two places after decimal.) 66 inches:
Mathematics
1 answer:
crimeas [40]3 years ago
5 0

Answer:

For a height of 66 inches, Z = 0.65.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

The average height was about 64.3 inches; the SD was about 2.6 inches.

This means that \mu = 64.3, \sigma = 2.6

66 inches:

The z-score for a height of 66 inches is:

Z = \frac{X - \mu}{\sigma}

Z = \frac{66 - 64.3}{2.6}

Z = 0.65

For a height of 66 inches, Z = 0.65.

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Delvig [45]
There are a few ways you can go about solving this question. One way is to use the given information to find how many tons of flour can be processed in one hour. If 27 tons can be processed in 3 hours, we can do 27 divided by 3 to find that 9 tons of flour can be processed per hour. Then, if we want to see how many tons of flour can be processed in 8 hours, we can multiply 9 tons by 8 hours to get a total of 72 tons of flour.

I hope this helps.
5 0
3 years ago
a card is drawn at random from a standard 52 card deck has a 1/13 chance of being at 8. What is the probability of the car not b
Free_Kalibri [48]

Answer:

12/13

Step-by-step explanation:

There are 52 cards in the deck

4 are aces

That leaves 52-4  or 48 that are not aces

P(not an aces) = cards that are not aces / total

                        = 48/52

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5 0
2 years ago
Read 2 more answers
What is the factored form of 3x^2+21x-24
Oxana [17]

Answer:

3(x-1)(x+8)

Step-by-step explanation:

3x2+21x−24

3x2+21x−24

=3(x−1)(x+8)

8 0
3 years ago
Read 2 more answers
Help please ASAP!!!!
Semenov [28]

The answer would be 65.9%. Add both paper numbers together (26.5+51.3) which is to 77.8.. to find paper not recycled just put 51.3/77.8 which would be 0.659 as a decimal.. move the decimal over to the right twice and that'd be your percentage.

8 0
3 years ago
Write an expression for the operation described below.<br> the quotient of z and y
Vsevolod [243]

Answer:

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Step-by-step explanation:

the quotient of z and y

this does no require any work just understand the question

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z/y

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3 years ago
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