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inysia [295]
3 years ago
8

Answer please #1-4 !!!!!!

Mathematics
1 answer:
Darya [45]3 years ago
6 0

Answer: I can't see the image

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When converting a fraction to a decimal, the numerator is the A dividend. B quotient. divisor. product.​
Andrei [34K]

Answer:

Dividend

Step-by-step explanation:

When converting a fraction to a decimal, the numerator is the dividend.

6 0
3 years ago
Brenda and Sally run in opposite directions on a circular track, starting at diametrically opposite points. They first meet afte
ddd [48]

Answer:

I believe the answer is 80 meters.

Note: I am not sure how to explain this so that it makes sense.

6 0
4 years ago
) How many degrees of freedom are available for hypothesis tests and confidence intervals for single regression coefficient
sladkih [1.3K]

Answer:

We use students' t distribution therefore degrees of freedom is v= n-2

Step-by-step explanation:

<u>Confidence Interval Estimate of Population Regression Co efficient β.</u>

To construct the confidence interval for β, the population regression co efficient , we use b, the sample estimate of β. The sampling distribution of b is normally distributed with mean β and a standard deviation σ.y.x / √(x-x`)². That is the variable z = b - β/σ.y.x / √(x-x`)² is a standard normal variable. But σ.y.x  is not known so we use S.y.x and also student's t distribution rather than normal distribution.

t= b - β/S.y.x / √(x-x`)² = b - β/Sb    [Sb = S.y.x / √(x-x`)²]

with v= n-2 degrees of freedom.

Consequently

P [ - t α/2<  b - β/Sb  < t α/2] = 1- α

or

P [ b- t α/2 Sb<   β  < b+ t α/2 Sb] = 1- α

Hence a 100( 1-α) percent confidence for β the population regression coefficient for a particular sample size n <30  is given by

b± t α/2 Sb

Using the same statistic a confidence interval for α can be constructed in the same way for  β  replacing  a with b and Sa with Sb.

a± t α/2 Sa

Using the t statistic  we may construct the confidence interval for U.y.x for the given value X0 in the same manner

Y~0 ± t α/2(n-2) SY~

Y~0= a+b X0

4 0
3 years ago
Estimate the number of DVDs that will be checked out for every 100 patrons.
anastassius [24]

The number of DVDs that will be checked out for every 100 patrons will be 20.

<h3>How to find that a given condition can be modeled by binomial distribution?</h3>

Binomial distributions consist of n independent Bernoulli trials.

Bernoulli trials are those trials that end up randomly either on success (with probability p) or on failures( with probability 1- p = q (say))

Suppose we have random variable X pertaining to a binomial distribution with parameters n and p, then it is written as

 

X \sim B(n,p)

The probability that out of n trials, there'd be x successes is given by

P(X =x) = \: ^nC_xp^x(1-p)^{n-x}

The expected value of X will be:

E(X) = np\\

The information is given in the table.

The probability of getting DVDs will be

\rm p = \dfrac{2}{10}\\\\p=2

The value of n is 100.

Then the number of DVDs that will be checked out for every 100 patrons will be

\rm E(X) = 100 \times 0.2\\\\E(X) = 20

Learn more about binomial distribution here:

brainly.com/question/13609688

#SPJ1

5 0
2 years ago
The graph is of a function in the form p(t) = a*b^t. What is the function?
DanielleElmas [232]

Answer:

  p(t) = 5*2^t

Step-by-step explanation:

We can solve for 'a' and 'b' using the point coordinates shown on the graph.

<h3>Setup</h3>

Substituting for (t, p(t)), the two equations we can make from the given points are ...

  p(t) = a*b^t

  5 = a*b^0 . . . . . . . (t, p(t)) = (0, 5)

  10 = a*b^1 . . . . . . . (t, p(t)) = (1, 10)

<h3>Solution</h3>

The first equation tells you ...

  5 = a

The second equation tells you ...

  10 = 5*b

  2 = b

<h3>Equation</h3>

The function is ...

  p(t) = a*b^t

  p(t) = 5*2^t

5 0
2 years ago
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