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3 years ago

What is a partical product?

Mathematics

2 answers:

pshichka [43]3 years ago

8 0

It's a method in doing multiplication in math.

Butoxors [25]3 years ago

4 0

partial product; plural noun: partial products
the product of one term of a multiplicand and one term of its multiplier.the product of the first n terms of a large or infinite series, where n is a finite integer.

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The total scores on the Medical College Admission Test (MCAT) in 2013 follow a Normal distribution with mean 25.3 and standard d

Elden [556K]

In a normal distribution, the median is the same as the mean (25.3). The first quartile is the value of $Q_1$ such that

$\mathbb P(X$

You have

$\mathbb P(X$

For the standard normal distribution, the first quartile is about $z\approx-0.6745$ , and by symmetry the third quartile would be $z\approx0.6745$ . In terms of the MCAT score distribution, these values are

$\dfrac{Q_1-25.3}{6.5}=-0.6745\implies Q_1\approx20.9$
$\dfrac{Q_3-25.3}{6.5}=0.6745\implies Q_3\approx29.7$

The interquartile range (IQR) is just the difference between the two quartiles, so the IQR is about 8.8.

The central 80% of the scores have z-scores $\pm z$ such that

$\mathbb P(-z$

That leaves 10% on either side of this range, which means

$\underbrace{\mathbb P(-z$

You have

$\mathbb P(Z$

Converting to MCAT scores,

$-1.2816=\dfrac{x_{\text{low}}-25.3}{6.5}\implies x_{\text{low}}\approx17.0$
$1.2816=\dfrac{x_{\text{high}}-25.3}{6.5}\implies x_{\text{high}}\approx33.6$

So the interval that contains the central 80% is $(17.0,33.6)$ (give or take).

7 0

3 years ago

If the diameter of a circle is 9 cm, then its circumference is 56.52 cm.<br> True or False

Georgia [21]

Answer: true

Step-by-step explanation: first you divide its circumference by pi, which you then get 17.990. Round it to 18. Then use the diameter (18) and divide it by 2. You get 9.

6 0

3 years ago

How many numbers are 10 units from 0 on the number line? Type your answer as a numeral.

timofeeve [1]

Answer:

There are two numbers 10 units from zero on the number line. These are 10 and -10.

Step-by-step explanation:

On a number line, if you move a pointer ten units right and left you will land on 10 and -10.

7 0

3 years ago

two friends are collecting school supplies. barbara had 4 more than triple as her friend lisa. together, they have 40 supplies.

Wewaii [24]

Answer:

3(10 + 4) = 34 + 6 = 40

Step-by-step explanation:

Barbara has 30 school supplies plus an extra 4. Lisa on the other hand has 6. In total they have 40.

3 0

3 years ago

The prism has a volume of 120 cm3. What would the volume of the prism be if each dimension were halved? cm3 Triangular prism wit

Citrus2011 [14]

The volume of a triangular prism is V = 1/2 x a x c x h where a is height of the triangle, c is the base of the triangle and h is the height of the prism.
120 = 1/2 x a x c x h; we write a from the previous equation in terms of c and h thus,
a = 240 / ( c x h)
If the dimensions where halved then a = a/2 ; c = c/2 ; h=h/2
We use the volume formula again and substitute the given values to find the new volume,
V = 1/2 x a/2 x c/2 x h/2
Substitute the previously determined a term,
V = 1/2 x (240/2ch) x c/2 x h/2
We cancel and evaluate the constants therefore the new volume is,
V= 15 cm^3

3 0

4 years ago