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Elena L [17]
3 years ago
9

Using the graph as a reference, select all statements that are true about a normal distribution of data.

Mathematics
2 answers:
artcher [175]3 years ago
5 0

Answer:

Normal distributions are symmetrical about the mean, m.

The probability that an event is within 1 standard deviation above the mean is 34%

So the 1st and 4th options.

Step-by-step explanation:

Just answered and got it right lol

dimaraw [331]3 years ago
4 0

Answer

1st and 4th option on edg

Step-by-step explanation:

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The associative property allows us to change the grouping of the factors that are
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Answer:

Step-by-step explanation:equivalent expressions

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2 years ago
How long does it take to travel 360 km at a constant speed of 12 km/h?
Law Incorporation [45]

Answer:

30 hours is the right answer

5 0
2 years ago
. Ana tiene el triple de edad que su hijo Jaime. Dentro de 15 años, la edad de Ana será el doble que la de su hijo. ¿Cuántos año
poizon [28]

Answer:

La madre de Jaime tiene 30 años más que él.

Step-by-step explanation:

Llamemos x a la edad actual de Jaime, si la edad actual de Ana es el triple que la de Jaime, entonces la edad actual de Ana es 3x.

Dentro de 15 años, la edad de Jaime será x+15 (edad actual más 15 años) y usando el mismo razonamiento, la edad de Ana será 3x + 15.

Por otro lado el problema nos dice que dentro de 15 años, la edad de Ana (que ya sabemos que será 3x + 15) será igual al doble de la que tendrá su hijo en 15 años. Esto en forma de ecuación se representa:

3x+15=2(x+15) (la edad de Ana será igual que el doble de la de su hijo)

Resolviendo la ecuación:

3x+15= 2(x+15)\\3x+15=2x+30\\3x-2x=30-15\\x=15

Por lo tanto, Jaime tiene 15 años y su madre tiene 3x=3(15)=45 años. Por lo tanto la diferencia de edad es de 30 años y Ana tiene 30 años más que su Jaime.

3 0
3 years ago
Considerando √2=1,4 caculando o valor de 5√2
Stells [14]
The answer would be
8 0
2 years ago
Help? Statistics...
BartSMP [9]

On your calculator, use the normalcdf() function, enter the Lower Limit, Upper Limit, Mean, and Standard deviation.

The mean and standard deviation are given to you. You want to find "less than 13.5 seconds", meaning that 13.5 is the maximum "Upper Limit" and 0 would be the Lower Limit because we can pretend 0 second is the minimum. Don't worry about negatives, in this scenario, values like "-5 seconds" are impossible.

Enter normalcdf(0, 13.5, 13.56, 2.24) in a calculator and the output result is the answer.

7 0
3 years ago
Read 2 more answers
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