los ceros de una función también se pueden llamar las raíces, básicamente significan donde una función o parábola cruzará la coordenada x. encontrar las raíces de una ecuación significa encontrar donde la parábola intercepta el eje x

Step-by-step explanation:

3 0

3 years ago

Given IQ scores are approximately normally distributed with a mean of 100 and standard deviation of 15, the proportion of people

Nataliya [291]

Answer: 0.0228 .

Step-by-step explanation:

Given, IQ scores are approximately normally distributed with a mean of 100 and standard deviation of 15

Let X denotes the IQ score.

Then, the proportion of people with IQs above 130 is

$P(X>130)=P(\dfrac{X-mean}{ standard\ deviation}>\dfrac{130-100}{15})\\\\= P(Z>2)\ \ \ \[Z=\dfrac{X-mean}{ standard\ deviation}]$

$=1-P(Zz)=1-P(Z$

Hence, the proportion of people with IQs above 130 is 0.0228 .

4 0

3 years ago

Please help me with this!!!

Mandarinka [93]

Answer:

p=3/8, q=1/2

Step-by-step explanation:

Please mark as brainliest

3 0

3 years ago

Out of 2400 students of a school only 40% passed. How many students failed

11Alexandr11 [23.1K]

The first thing you must do is find 10% of 2400. To do this you divide by ten (to gets the 100% to 10%). This means that 10% is 240. You now must get from 10% to 40% which means multiply by 4, so that the final answer is 960. You could also multiply 2400 by 0.4.

7 0

3 years ago

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