I need help asap!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I need help asap!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! - 1

Answers

Answer 1
Answer: The answer is
A:positive
Answer 2
Answer: It would be negative

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A researcher wants to know how professional athletes in her city feel about safety measures. She obtains a list of 952 professional athletes in her city, selects 400 of them at random, and emails a questionnaire to them. 86 questionnaires are returned. Of these, 76% stated that they believe that the enforcement of safety measures needs to be completely overhauled. Classify the following groups as the population or the sample for this particular study. a. The proportion of all professional athickes in the rescarcher's home city who believe thal the cnlorcement of salfcty mcasures nocds to be compleicly overhauled.
b. The 76% who stated that thc enforcement of salty mcasures needs to be completh overhauled.
c. The 952 prolessional athkics whosc names were oblainoed,
d. All professional athlctes.

Answers

Answer:

Step-by-step explanation:

For this case the population represent all the professional athletes in the researcher city and we can assume that the sample size for tis population is N =982 and represent all the individuals of interest for the study and the parameter of interest is the proportion of athletes who believe that the enforcement of safety measures needs to be completely overhauled .

In order to estimate te parameters of the population the researcher select a sample of 400 professional athletes and just 86 of them returns the questionnaire sent. So then the real sample is the n =86 people who return the info, because the other people are part of the non response rate, and from this sample she found that the proportion of athletes who believe that the enforcement of safety measures needs to be completely overhauled is .

p=0.76

What are the zeros of the function f(x) =(x^2 - 3x - 10)(x + 4)
!!Please help!!!

Answers

f(x) = (x² - 3x - 10)(x + 4) becomes (x - 5)(x + 2)(x + 4) when completely factored. Now set each binomial equal to zero. 

x - 5 = 0
x = 5

x + 2 = 0
x = - 2

x + 4 = 0
x = - 4

Your zeros are at x = - 4, - 2, and 5. Or at (- 4, 0), (- 2, 0), and (5, 0)

A _________________is a numerical value that describes a population.

Answers

Answer:

A parameter is a numerical value that describes a population.

Step-by-step explanation:

hope it helps

Answer: parameter

Step-by-step explanation:

1/4 times 2 equals??

Answers

Answer:

1/2

Step-by-step explanation:

Answer:

1/2

Step-by-step explanation:

1/4 = 0.25 x 2 = 0.5 = 1/2

Determine the circumference of the base of the tin?

Answers

By answering the given question, we may state that We can apply the formula if we know the radius: C = 2πr where the radius r is.

what is diameter?

In geometry, a circle's diameter is any straight line segment whose endpoint is on the circle and which passes through its centre. Another name for it is the circle's longest chord. The diameter of a sphere can be defined using either idea. The diameter is the length of the line perpendicular to the two points at either end of the circle. If you think of length as the distance between two points, then diameter is length. The diameter of a circle is the separation between its two farthest points.

We must know the base's diameter or radius in order to calculate the circumference of the tin.

If we know the diameter, we can apply the following formula to determine the circle's circumference:

C = πd

where d is the diameter and C is the circumference.

We can apply the formula if we know the radius:

C = 2πr

where the radius r is.

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Mikey is typing in the computer lab and typing at 23 words per minute. If he types for 11 minutes, how many words does he type?

Answers

Answer:

253

Step-by-step explanation:

23 x 11 = 253