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3 years ago

You calculate the probability of an event and it turns out to be 0.7, you know

Mathematics

1 answer:

aivan3 [116]3 years ago

6 0

Answer:

C. the probability of it not happening is 0.3.

Step-by-step explanation:

Probability of event happening is of 0.7.

Either it happens, or it does not. The sum of these probabilities is 100%.

0.7 probability of happening, so 1 - 0.7 = 0.3 probability of not happening, and the correct answer is given by option C.

A is wrong as the probability is not 1, and B is wrong as the probability is higher than 0.5.

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zavuch27 [327]

Answer:

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Step-by-step explanation:

thats your answer XD

3 0

3 years ago

Which Trig ratio should be used to find the missing side?

stiks02 [169]

Answer:

sin

Step-by-step explanation:

take 34 degree as reference angle

usinf sin rule

sin 34=opposite/hypotenuse

0.55=16/x

x=16/0.55

x=29.09

x=29.1

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3 years ago

A student tests 100 students to determine whether other students on her campus prefer soda brand A or soda brand B and finds no

ArbitrLikvidat [17]

Answer:

Option B

Step-by-step explanation:

Since the company that Carrie out the survey after the students also arrived at the same conclusion as the student which is: no evidence that preference for brand A is not 0.5. We can say that she did not make any error which could be a type 1 or 2 error and found that the actual value was 0.5 which is the null hypothesis

Null hypothesis: u = 0.5 for brand A

and thus fails to reject the null hypothesis.

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3 years ago

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lions [1.4K]

Answer:

Step-by-step explanation:

two of the sidea have to be the same length to make an even triangle

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2 years ago

Bethany sent 60 text messages. She said that 15% of those messages were to her best friend. How many text messages did Bethany's

labwork [276]

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Hope that helps.

8 0

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