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gayaneshka [121]
3 years ago
14

On a normal distribution of iq test scores, with a mean of 100 and a stadard deviation of 15 points, a score of 70 would place y

ou in approximately what percentile of the population?
Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
4 0
(70 -100)/15 = -2 . . . . the z-score of a score of 70

p(z < -2) ≈ 2.3%

A score of 70 would place you in approximately the 2nd percentile.
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= 1/2 (u+v)t
RoseWind [281]

The distance travelled by an object is 50 m.

<h3>What is Distance?</h3>

The distance between two points is the length of the path connecting them.

Here, given equation of distance

         S = 1/2 (u + v)t

Where s is the distance traveled by an object (in meters)

initial velocity u (in m/s)

final velocity v (in m/s).

t in seconds.

Now, given values are;

u = 8 m/s ;  v = 12 m/s ;   t = 5 sec.

    S = 1/2 (8 + 12)5

    S = 1/2 (20)5

    S = 100/2

    S = 50 m.

Thus, the distance travelled by an object is 50 m.

Learn more about Distance from:

brainly.com/question/15172156

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5 0
2 years ago
Paul needs to buy 5/8 pound of peanuts. The scale at the store measures parts of a pound in sixteenths. Which measure is equival
Bogdan [553]
10/16 because you multiply 8x2 to get sixteen, the denominator you need. So whatever you do to the denominator, you do to the numerator. So 5x2 is 10. 10/16
4 0
3 years ago
Read 2 more answers
Can someone help please!!!!!!!!!!!!!!
Ksenya-84 [330]

Step-by-step explanation:

The population of a small town is 1600 and is increasing at a rate or. 3% per year.

8 0
3 years ago
WIL GIVE BRAINLIEST PLEASE!!!
Aloiza [94]

Answer:

400

Step-by-step explanation:

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3 0
2 years ago
Ab - bc+ ac, bc - ca+ ab, ca - ab-2bc
BabaBlast [244]

Answer:

ab-2bc+ca

Step-by-step explanation:

Complete question is given below

Add:-

ab-bc+ac,bc-ca+ab,ca-ab-2bc

We have to find the result after addition

Now, adding all expression

We get

ab-bc+ac+bc-ca+ab+ca-ab-2bc

Combine like terms then, we get

(ab+ab-ab)+(bc-bc-2bc)+(ac-ca+ca)

ab-2bc+ca

Hence,ab-bc+ac+bc-ca+ab+ca-ab-2bc=ab-2bc+ca

3 0
3 years ago
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