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3 years ago

Select the correct answer.

Mathematics

1 answer:

creativ13 [48]3 years ago

7 0

Answer:

Step-by-step explanation:

27 = P×(1 + 3r) = P + P×3×r

27 - P = P×3×r

r = (27 - P) / (3P)

therefore D is correct

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Answer choices: A: y=x B: y=1/4x -2 C: y= -x + 7/4 D: y= 7/4x -2

Nuetrik [128]

Answer:

b: y=1/4x -2

Step-by-step explanation:

It says the answer in the question. the slope on the graph is really just 1 though.

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2 years ago

Make a frequency table and a dot plot for the Korean class

katrin2010 [14]

Can you give the data please?

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4 years ago

According the bar graph above, which month saw the lowest number of student ticket sales?

lesantik [10]

There's no graph. Btw.

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4 years ago

at a store, the probability that a customer buys socks is 0.15. the probability that a customer buys socks given that the custom

leva [86]

Answer: Option B

Step-by-step explanation:

First we assign a name to the events:

Event S: a customer buys socks

Event H: a customer buys shoes.

We know that :

$P (S) = 0.15$

We also know that the probability of S given that H occurs is:

$P(S|H) =\frac{P(S\ and\ H)}{P(H)}=0.20$

If two events S and H are independent then:

$P (S) * P (H) = P (S\ and\ H)$

This mean that if two events S and H are independent then:

$P(S|H) =\frac{P(S)*P(H))}{P(H)}$

$P(S|H) =P(S)$

We know that:

$P(S|H) =0.20$ and $P (S) = 0.15$

$0.20\neq 0.15$

This means that S and H events are dependent.

The answer is the option B

3 0

3 years ago

What is statistical power and how would you calculate it?

Natasha_Volkova [10]

Answer:

The statistical power of a hypothesis test is the probability of detecting an effect, if there is a true effect present to detect. Power can be calculated and reported for a completed experiment to comment on the confidence one might have in the conclusions drawn from the results of the study.

I hope it's helpful!

3 0

3 years ago

Select the correct answer.​

Select the correct answer.