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Iteru [2.4K]
2 years ago
11

PLEASE HELP I will give 50 points! PLEASE ANSWER CORRECTLY

Mathematics
1 answer:
olga nikolaevna [1]2 years ago
5 0

Using it's concept, the experimental probability that in a group of 4 students, at least one of them has green eyes is of 0.45 = 45%.

<h3>What is a probability?</h3>

A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>. An experimental probability is calculated considering the results of previous trials.

In this problem, there were 20 trials. The digit 9, which represents a student with green eyes, appears at least once in 9 of the the trials, hence the probability is:

p = 9/20 = 0.45 = 45%.

More can be learned about probabilities at brainly.com/question/14398287

#SPJ1

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Find the distance UV between the points U (7,-4) and V(-3,-6). Round your answers to the nearest tenth,if necessary
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Step-by-step explanation:

The distance between two points can be found by using the formula

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The distance between them is

|UV|  =  \sqrt{( {7 + 3})^{2}  + ( { - 4 + 6})^{2} }  \\  =  \sqrt{ {10}^{2}  +  {2}^{2} }  \\  =  \sqrt{100 + 4}  \:  \\  =  \sqrt{104}  \:  \:  \:  \:  \:  \:  \:  \:  \\  = 2 \sqrt{26}  \:  \:  \:  \:  \:  \:  \:  \:   \\  = 10.1980...

We have the final answer as

<h3>10.2 units to the nearest tenth</h3>

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