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kupik [55]
3 years ago
9

Please help Geometry 30 points plus brainliest ...

Mathematics
1 answer:
stepladder [879]3 years ago
6 0
If you have any questions or need help them please comment. Good luck!

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A highly selective boarding school will only admit students who place at least 2.5 standard deviations above the mean on a stand
VladimirAG [237]

Answer:

The minimum score that an applicant must make on the test to be​ accepted is 360.

Step-by-step explanation:

Given : A highly selective boarding school will only admit students who place at least 2.5 standard deviations above the mean on a standardized test that has a mean of 300 and a standard deviation of 24.

To find : What is the minimum score that an applicant must make on the test to be​ accepted?

Solution :

We apply the z formula,

z=\frac{x-\mu}{\sigma}

Where, z value= 2.5

\mu=300 is the mean of the population

\sigma=24 is the standard deviation

x is the sample mean.

Substituting the values in the formula,

2.5=\frac{x-300}{24}

2.5\times24=x-300

60=x-300

x=60+300

x=360

Therefore, The minimum score that an applicant must make on the test to be​ accepted is 360.

8 0
4 years ago
For number five what is the Mean, Median, Mode, and Range
liubo4ka [24]

Answer:

Median- 31

Mean- 39

Mode- 20

Range-71

Step-by-step explanation:

Median-13, 20, 20, 20, 31, 35, 61, 67, 84

31 one is in the middle, also you have to sort it for least to greatest.

Mean- Add all the number then divide by the numbers there are.

Mode-It has occored the most

Range- sort least to greatest, then subtract the highest number to the lowest

8 0
3 years ago
PLS HELP WILL GIVE BRAINLIEST PLS but pls answer correctly pls
Oduvanchick [21]
The answer would be D) 99
5 0
3 years ago
Aman has 25 marbles more than half of the marbles that Rajiv has.​If Aman has 40 marbles ,how many marbles does Rajiv have ?
Goryan [66]

Answer:

Step-by-step explanation: lets say, rajiv has x marbles.

given: aman has 40 marbles

           and aman's marbles are 25 more than half of rajiv's marbles.

so, aman has 25 + x/2 marbles

    40 = 25 + x/2

    40 - 25 = x/2

    15 = x/2

    15*2 = x

    30 = x

thus, rajiv has 30 marbles.                  

4 0
3 years ago
Help pleasee it says given AD is a median. find the value of x.
serious [3.7K]

do not enter the link it may be a virus

8 0
3 years ago
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