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3 years ago

Which of the following numbers of replications of an experiment would make the results most conclusive? 2,4,14,1

Mathematics

2 answers:

tekilochka [14]3 years ago

8 0

The answer is 14 the third one

a_sh-v [17]3 years ago

5 0

14 is the answer. Hope this helps

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One angle of a right triangle measures 78°. What is the measure of the other acute angle?

muminat

Answer:

12°

Step-by-step explanation:

a right triangle implies there is an angle that is 90°

another angle is 78°

the third angle is 180 - (90 + 78) = 180 - 168 = 12°

6 0

3 years ago

What is the explict formula for the arithmetic sequence -7.5,-9,-10.5,-12

elena-14-01-66 [18.8K]

Answer:

Step-by-step explanation:

the explicit formula for the arithmetic sequence has the form

x = a + d(n−1)

a is the first term and d is the common difference

The given arithmetic sequence is

-7.5,-9,-10.5,-12

The first term is -7.5

d = common difference = -9 - (-7.5) = -1.5

∴ x = -7.5 - 1.5(n−1)

8 0

3 years ago

A multiple choice test has four possible answers for each question. Let X be the number of correct responses in a test of 100 qu

dimulka [17.4K]

Answer:

a. 4.33.

Step-by-step explanation:

If there is only one correct answer out of four alternatives, the expected proportion of correct answers is p =0.25

Sample size (n) = 100 questions

The standard deviation of a proportion 'p' is given by:

$s=\sqrt{\frac{p*(1-p)}{n} }$

Applying the given data:

$s=\sqrt{\frac{0.25*(1-0.25)}{100}}\\s=0.0433$

If X is the number of correct responses in 100 guesses, the standard deviation of X is:

$\sigma = n*s=100*0.0433\\\sigma = 4.33$

The standard deviation of X is 4.33 questions.

7 0

3 years ago

A movie theater was organizing its movie posters for an upcoming sale they found that for every 5 action movie posters they were

adoni [48]

Answer:

Step-by-step explanation:

8 0

3 years ago

Rachel can buy licorice sticks for $0.75 and cherry candies for $0.50 and has a budget of $25 if her expenses are represented by

likoan [24]

You can buy 50 of the cherry candies with all of the 25$ because you do 25 divided by 0.50 and get 50 and then if you would like to check that do 50 x 0.50 and you will still get 25$

6 0

3 years ago