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Elena-2011 [213]
2 years ago
11

A computer generates 75 integers from 1 to 8 at random. The results are recorded in this table. Outcome 1 2 3 4 5 6 7 8 Number o

f times outcome occurred 12 16 9 12 4 7 5 10 What is the experimental probability of the computer generating a 3 or a 4? 9% 15% 21% 28%
Mathematics
1 answer:
IgorLugansk [536]2 years ago
6 0

Answer:

28 is the answer

Step-by-step explanation:

Took k-12 unit test

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Need help pls<br>thank you in advance ​
ira [324]

Answer:

<h3><u>Mean</u></h3>

<u />

\textsf{Mean}\:\overline{X}=\sf \dfrac{\textsf{sum of all the data values}}{\textsf{total number of data values}}

\implies \sf Mean\:(Nilo)=\dfrac{5+6+14+15}{4}=\dfrac{40}{4}=10

\implies \sf Mean\:(Lisa)=\dfrac{8+9+11+12}{4}=\dfrac{40}{4}=10

<h3><u>Standard Deviation</u></h3>

\displaystyle \textsf{Standard Deviation }s=\sqrt{\dfrac{\sum X^2-\dfrac{(\sum X)^2}{n}}{n-1}}

\begin{aligned}\displaystyle \textsf{Standard Deviation (Nilo)} & =\sqrt{\dfrac{(5^2+6^2+14^2+15^2)-\dfrac{(5+6+14+15)^2}{4}}{4-1}}\\\\& = \sqrt{\dfrac{482-\dfrac{40^2}{4}}{3}}\\\\& = \sqrt{\dfrac{82}{3}}\\\\& = 5.23\end{aligned}

\begin{aligned}\displaystyle \textsf{Standard Deviation (Lisa)} & =\sqrt{\dfrac{(8^2+9^2+11^2+12^2)-\dfrac{(8+9+11+12)^2}{4}}{4-1}}\\\\& = \sqrt{\dfrac{410-\dfrac{40^2}{4}}{3}}\\\\& = \sqrt{\dfrac{10}{3}}\\\\& = 1.83\end{aligned}

<h3><u>Summary</u></h3>

Nilo has a mean score of 10 and a standard deviation of 5.23.

Lisa has a mean score of 10 and a standard deviation of 1.83.

The <u>mean</u> scores are the <u>same</u>.

Nilo's standard deviation is higher than Lisa's.  Therefore, Nilo's test scores are more <u>spread out</u> that Lisa's, which means Lisa's test scores are more <u>consistent</u>.

5 0
2 years ago
According to data on the website for the Centers for Disease Control and Prevention (CDC), 35% of American adults were obese in
Serggg [28]

Answer: 2.2464 × 10^8

Step-by-step explanation:

Percentage of obese Americans in 2011 - 2012 = 35%

Percentage of Americans who are adult = 72%

United States population estimate = 312 million

Adult = age 20 and above

Number of adult Americans (age 20 and above) :

72% of the total united states estimated population

72% of 312,000,000

72/100 × 312,000,000

0.72 × 312,000,000

= 224,640,000

Hence, estimated Adult American population (age 20 and above) = 224,640,000

2.2464 × 10^8

7 0
3 years ago
Question 16. I need to know how to do this problem because I have a math final tmr!
aniked [119]

A ratio shows us the number of times a number contains another number. Monique should choose the third option.

<h3>What is a Ratio?</h3>

A ratio shows us the number of times a number contains another number.

Given Monique prefers the ratio of multiple-choice questions to essay questions to be 4:1, Therefore, we can write,

Multiple choice questions/ essay questions = 4/1,

If we multiply both the numerator and the denominator by 6, the ratio will be,

Multiple choice questions/ essay questions = 4/1 × 1

Multiple choice questions/ essay questions = (4/1) × (6/6)

Multiple choice questions/ essay questions = 24 / 6

Thus, Monique should choose the third option.

Learn more about Ratios:

brainly.com/question/1504221

#SPJ1

6 0
3 years ago
Analysts determined that a baseball team had a 25% chance of winning its next game. Which simulation could you use to answer que
Firdavs [7]

Q= Analysts determined that a baseball team had a 25% chance of winning its next game. Which simulation could you use to answer questions about winning the game?

Answer:

<u>For this question,  there is a 75% chance of loosing.</u>

<h3><em><u>In a similar question .........</u></em></h3>

Q= Analysts determined that a basketball team had a 50% chance of winning its next game. Which simulation could you use to answer questions about winning the game?  

A<u>= the team has 50% probilty of suscseeding</u>

<u>So we should use a simulation that also has the same posiblities. </u>

<u> so flipping a coin can be used in this situaouion </u>

<u> as it has 2 ends each with probability 1/2. Therefore in this question answer is 50 % </u>

<u>____________________________________________________</u>

<u />

<h3><u>Therfore the answer is 75% because if you see the answer and question to the example I have proivedand see how you get that answer you will undrestnad the promblem you have. </u></h3>

<u>____________________________________________________</u>

<h2><u>I Hope this helps!</u></h2><h2><u>Have a great day !</u></h2><h2><u>Please mark brianest if it deserves too !  </u></h2>
5 0
4 years ago
If you can make payments of $450 on a 5-year loan that has an APR of 6.5%,
Vera_Pavlovna [14]

Answer:

To determine the maximum loan amount you can afford, you need to know the amount of your monthly payment and the annual percentage rate (APR) of the loan. The APR is the interest rate of the loan, expressed as a yearly rate. It takes into account not only the interest rate, but also any fees or other charges associated with the loan.

In this case, you know that you can make monthly payments of $450 and that the APR of the loan is 6.5%. To determine the maximum loan amount you can afford, you can use the following formula:

Maximum loan amount = (Monthly payment / (APR / 100 / 12)) * (1 - (1 + (APR / 100 / 12))^-n)

where n is the number of monthly payments. In this case, you are taking out a 5-year loan, which means you will make 60 monthly payments (5 years * 12 months/year = 60 months), so n = 60. Plugging these values into the formula, we have

Maximum loan amount = ($450 / (6.5% / 100 / 12)) * (1 - (1 + (6.5% / 100 / 12))^-60)

= ($450 / 0.00542) * (1 - (1 + 0.00542)^-60)

= $83,146.54

Therefore, the maximum loan amount you can afford is $83,146.54. This is the maximum amount you can borrow, assuming that you make monthly payments of $450 and the APR of the loan is 6.5%. You should carefully consider your ability to make these monthly payments before taking out a loan of this amount.

Step-by-step explanation:

4 0
1 year ago
Read 2 more answers
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