Ask question

Ask question

All categories

3 years ago

7

De los 740 alumnos y alumnas que tiene el colegio, el 62% tienen los ojos marrones 31% azules y el resto verdes ¿ cuantos niños

y niñas no tienen los ojos marrones? ¿Hay el doble de alumnado con ojos marrones que azules

1 answer:

MatroZZZ [7]3 years ago

8 0

Answer:

I THIK TGE ANSWER IS 93%

Step-by-step explanation:

BECAUSE I DO IN PLUS

You might be interested in

Inez has to pay 4 percent in closing costs and 16 percent for the down payment on a purchase of $225,500 with an ARM. Over the l

vivado [14]

Answer:

A. $307,172.72

Step-by-step explanation:

Inez has to pay 4 percent in closing costs and 16 percent for the down payment on a purchase of $225,500 with an ARM.

4% + 16% = 20%

lnez has to pay 20% of $225,500

= 225,500*20/100

= 225,500*0.2

= $45100

lnez has to pay $45100.

Over the life of the loan, lnez will pay $262,072.72

Now we have to add down payment, closing cost and the payment over the life of the loan.

$45100 + $262,072.72

= $307,172.72

Answer: A. $307,172.72

Thank you.

5 0

3 years ago

Read 2 more answers

A fish tank holds 10450ml of water. The water is leaking at a rate of 270ml per minute. What is the function to model this situa

bogdanovich [222]

Answer:

The function is given f(t) = 10450 - 270t

3 0

4 years ago

Need urgent help in mathematics!! Will mark brainliest!!!!

Vinil7 [7]

The answer is the last option

7 0

3 years ago

Read 2 more answers

The mean cost of domestic airfares in the United States rose to an all-time high of $385 per ticket (Bureau of Transportation St

AysviL [449]

Answer:

a) 0.0668 = 6.68% probability that a domestic airfare is $550 or more

b) 0.1093 = 10.93% probability than a domestic airfare is $250 or less

c) 0.6313 = 63.13% probability that a domestic airfare is between $300 and $500

d) The cost for the 3% highest domestic airfares are $592 and higher.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 385, \sigma = 110$

a. What is the probability that a domestic airfare is $550 or more (to 4 decimals)?

This is 1 subtracted by the pvalue of Z when X = 550. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{550 - 385}{110}$

$Z = 1.5$

$Z = 1.5$ has a pvalue of 0.9332

1 - 0.9332 = 0.0668

0.0668 = 6.68% probability that a domestic airfare is $550 or more

b. What is the probability than a domestic airfare is $250 or less (to 4 decimals)?

This is the pvalue of Z when X = 250. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{250 - 385}{110}$

$Z = -1.23$

$Z = -1.23$ has a pvalue of 0.1093

0.1093 = 10.93% probability than a domestic airfare is $250 or less

c. What if the probability that a domestic airfare is between $300 and $500 (to 4 decimals)?

This is the pvalue of Z when X = 500 subtracted by the pvalue of Z when X = 300. So

X = 500

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{500 - 385}{110}$

$Z = 1.045$

$Z = 1.045$ has a pvalue of 0.8519

X = 300

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{300 - 385}{110}$

$Z = -0.77$

$Z = -0.77$ has a pvalue of 0.2206

0.8519 - 0.2206 = 0.6313

0.6313 = 63.13% probability that a domestic airfare is between $300 and $500

d. What is the cost for the 3% highest domestic airfares?

At least the 97th percentile, so at least X when Z has a pvalue of 0.97. So X when Z = 1.88.

$Z = \frac{X - \mu}{\sigma}$

$1.88 = \frac{X - 385}{110}$

$X - 385 = 1.88*110$

$X = 592$

The cost for the 3% highest domestic airfares are $592 and higher.

7 0

3 years ago

anastassius [24]

Answer:

1 = false

2 = true

3 = false

4 = false

6 0

3 years ago