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4 years ago

RAW= 35, Z= _, T=_, %ile __ ?

1 answer:

6 0

Working entirely with the information given in the question,
it's really hard to tell what 'RAW', 'Z', 'T', or '%ile' represent.

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A rhombus is a square

emmasim [6.3K]

Answer:

A rhombus is a quadrilateral with all sides equal in length. A square is a quadrilateral with all sides equal in length and all interior angles right angles. Thus a rhombus is not a square unless the angles are all right angles. A square however is a rhombus since all four of its sides are of the same length.

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3 years ago

Read 2 more answers

Mangoes are priced 4 for $4.80 how much for one mango?

omeli [17]

Answer:

one dollar and 20 cents

Step-by-step explanation:

I divided 4.80 by four

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3 years ago

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1 point) As reported in "Runner's World" magazine, the times of the finishers in the New York City 10 km run are normally distri

BigorU [14]

Answer:

(a) E (X) = 61 and SD (X) = 9

(b) E (Z) = 0 and SD (Z) = 1

Step-by-step explanation:

The time of the finishers in the New York City 10 km run are normally distributed with a mean,μ = 61 minutes and a standard deviation, σ = 9 minutes.

(a)

The random variable X is defined as the finishing time for the finishers.

Then the expected value of X is:

E (X) = 61 minutes

The variance of the random variable X is:

V (X) = (9 minutes)²

Then the standard deviation of the random variable X is:

SD (X) = 9 minutes

(b)

The random variable Z is the standardized form of the random variable X.

It is defined as: $Z=\frac{X-\mu}{\sigma}$

Compute the expected value of Z as follows:

$E(Z)=E[\frac{X-\mu}{\sigma}]\\=\frac{E(X)-\mu}{\sigma}\\=\frac{61-61}{9}\\=0$

The mean of Z is 0.

Compute the variance of Z as follows:

$V(Z)=V[\frac{X-\mu}{\sigma}]\\=\frac{V(X)+V(\mu)}{\sigma^{2}}\\=\frac{V(X)}{\sigma^{2}}\\=\frac{9^{2}}{9^{2}}\\=1$

The variance of Z is 1.

So the standard deviation is 1.

8 0

3 years ago

Find the missing ratio or angle measure: sin 10 degrees

MakcuM [25]

This question is incomplete but if you are asking for the angle measure then sin (10) is 0.1736481777

3 0

3 years ago

Joyce painted 4 window frames in 5 hours while earning money for college.

Art [367]

Answer:

4/5 frames/h

Step-by-step explanation:

Find the ratio frames per hour by dividing frames by hours:

(4 frames)/(5 hours) = (4/5) frames/hour

6 0

3 years ago