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 1

Answer:

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

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Answer:

x=2

Step-by-step explanation:

All of the angles equal 360. So if side z is equal to 100 then 360-200 = 160. The side on the left also is equal to the right side. 160-140 =20. 20/10 is 2. X is equal to 2.

A coin is flipped until 3 heads in succession occur. list only those elements of the sample space that require 6 or less tosses. is this a discrete sample space? explain

Answers

we are given

A coin is flipped until 3 heads in succession occur

so, firstly, we will find sample space

S={HHH , THHH , HTHHH, TTHHH , TTTHHH , HTTHHH , THTHHH , HHTHHHH, ......}

now, we are given that

list only those elements of the sample space that require 6 or less tosses

so, we can see that sample space

S={HHH , THHH , HTHHH, TTHHH , TTTHHH , HTTHHH , THTHHH , HHTHHHH, ......}

There are infinite such possibilities

so, there are infinite number of elements in space

and we know that

discrete sample space will always have finite elements

but we have infinite number of sample space elements here

so, this is not discrete sample space...........Answer

The sample space of flipping a coin until getting 3 heads in a row, and listing the elements that require 6 or fewer tosses.

In this case, we are looking at the sample space of flipping a coin until we get 3 heads in a row. To list the elements of the sample space that require 6 or fewer tosses, we need to consider the possible outcomes:

1 toss: H (head) or T (tail)
2 tosses: HH, HT, or TT
3 tosses: HHH, HHT, HTH, HTT, THH, THT, TTH, or TTT
4 tosses: HHHH, HHHT, HHTH, HHTT, HTHH, HTHT, HTTH, HTTT, THHH, THHT, THTH, THTT, TTHH, TTHT, TTTH, or TTTT
5 tosses: Same pattern as the 4 tosses with an additional H or T at the end
6 tosses: Same pattern as the 5 tosses with an additional H or T at the end

Yes, this is a discrete sample space because each toss of the coin has a finite number of possible outcomes (H or T).

Learn more about Discrete sample space here:

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Need help please ASAP ! The options for the first blank is A.close B.open price C.volume the options for second blank is A.day B.month

Answers

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Write a trinomial with 3x as the GCF of its terms.

Answers

Answer:

3x (x² + x + 1)

You could write any trinomial like this

Compute Lenny's estimated tax payment for the third quarter. He is self-employed and he expects to earn $40,800.00 this year. His estimated income tax rate is 19%.

Answers

Answer:

Lenny's tax payment for the year will be $7,752

(The third quarter payment would be $1,938)

Step-by-step explanation:

Hello, great question. These types are questions are the beginning steps for learning more advanced Problems.

Taxes are calculated once a year based on your yearly income. That being said we can look at Lenny's income for the year ($40,800) and multiply that by 0.19 (19%) to calculate his tax payment for the year.

$$40,800 * 0.19 = $7,752$

So Lenny's tax payment for the year will be $7,752 . The question asks for payment for the third quarter but as mentioned above tax is calculated yearly.

That being said if you would like to know how much it would be quarterly we can simply divide the tax payment by 4.

$7,752 / 4 = 1,938$