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3 years ago

The grade point average for 10 students are listed below. find the range of the data set.

Mathematics

2 answers:

Amanda [17]3 years ago

6 0

Answer:

might be 22.5 i think but i'm not sure correct me if i'm wrong

Step-by-step explanation:

strojnjashka [21]3 years ago

4 0

Answer:

Step-by-step explanation:

the range is the difference between the largest and the smallest value

4.0-0.8=3.2

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Allisa [31]

Answer:

Option A $sin(A)=\frac{9}{15}$

Step-by-step explanation:

we know that

$tan(A)=sin(A)/cos(A)$

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$sin(A)=tan(A)cos(A)$

we have

$tan(A)=\frac{9}{12}$

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substitute

$sin(A)=\frac{9}{12}(\frac{12}{15})$

$sin(A)=\frac{9}{15}$

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4 years ago

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frosja888 [35]

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Answer:

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3 years ago

Suppose the probability of an athlete taking a certain illegal steroid is 10%. A test has been developed to detect this type of

Travka [436]

Answer:

93.25% probability that they have taken this steroid

Step-by-step explanation:

Bayes Theorem:

Two events, A and B.

$P(B|A) = \frac{P(B)*P(A|B)}{P(A)}$

In which P(B|A) is the probability of B happening when A has happened and P(A|B) is the probability of A happening when B has happened.

In this question:

Event A: Positive test

Event B: Taking the steroid.

Suppose the probability of an athlete taking a certain illegal steroid is 10%.

This means that $P(B) = 0.1$

Given that the athlete has taken this steroid, the probability of a positive test result is 0.995.

This means that $P(A|B) = 0.995$

Positive test:

99.5% of 10%(If the athlete has taken).

100-99.2 = 0.8% of 100-10 = 90%(Athlete has not taken)

Then

$P(B) = 0.995*0.1 + 0.008*0.9 = 0.1067$

Given that a positive test result has been observed for an athlete, what is the probability that they have taken this steroid

$P(B|A) = \frac{P(B)*P(A|B)}{P(A)} = \frac{0.1*0.995}{0.1067} = 0.9325$

93.25% probability that they have taken this steroid

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3 years ago