Resourcesdown chevron
Testimonials
Plans
Sign in
Sign up
Resourcesright arrow
Testimonials
Plans
Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Timpony School District surveyed a random sample of 60 middle school students about the amount of time they watch TV. Of the students surveyed, 14 average watching more than 4 hours of TV each day. There are 1143 middle school students in the Timpony School District. Based on the data, what is the most reasonable estimate for the number of Timpony School District middle school students who average watching more than 4 hours of TV each day? Choose 1 answer: (A) 14 (B) 76 (c) 267 (D) 876

Timpony School District surveyed a random sample of 6060 middle school students about the amount of time they watch TV. Of the students surveyed, 1414 average watching more than 44 hours of TV each day. There are 11431143 middle school students in the Timpony School District. Based on the data, what is the most reasonable estimate for the number of Timpony School District middle school students who average watching more than 44 hours of TV each day?\newlineChoose 11 answer:\newline(A) 1414\newline(B) 7676\newline(C) 267 \mathbf{2 6 7} \newline(D) 876876

View step-by-step helpView step-by-step help
Homeright chevron icon
Math Problemsright chevron icon
Algebra 1right chevron icon
Experimental probabilityright chevron icon

Full solution

Q. Timpony School District surveyed a random sample of 6060 middle school students about the amount of time they watch TV. Of the students surveyed, 1414 average watching more than 44 hours of TV each day. There are 11431143 middle school students in the Timpony School District. Based on the data, what is the most reasonable estimate for the number of Timpony School District middle school students who average watching more than 44 hours of TV each day?\newlineChoose 11 answer:\newline(A) 1414\newline(B) 7676\newline(C) 267 \mathbf{2 6 7} \newline(D) 876876
  1. Calculate Proportion of Students: To estimate the number of students who watch more than 44 hours of TV each day, we will use the proportion of students from the sample who watch more than 44 hours and apply it to the total number of students in the district.
  2. Perform Calculation for Proportion: First, we calculate the proportion of students in the sample who watch more than 44 hours of TV. This is done by dividing the number of students who watch more than 44 hours by the total number of students surveyed.\newlineProportion = \frac{\text{Number of students watching > 4 hours}}{\text{Total number of students surveyed}} \newlineProportion = 1460 \frac{14}{60}
  3. Apply Proportion to Estimate Number of Students: Now, we perform the calculation to find the proportion.\newlineProportion = 1460\frac{14}{60} = 0.23330.2333 (rounded to four decimal places)
  4. Perform Calculation for Estimated Number of Students: Next, we apply this proportion to the total number of students in the district to estimate the number of students who watch more than 44 hours of TV.\newlineEstimated number of students = Proportion ×\times Total number of students in the district\newlineEstimated number of students = 0.2333×11430.2333 \times 1143
  5. Perform Calculation for Estimated Number of Students: Next, we apply this proportion to the total number of students in the district to estimate the number of students who watch more than 44 hours of TV.\newlineEstimated number of students = Proportion ×\times Total number of students in the district\newlineEstimated number of students = 0.2333×11430.2333 \times 1143 We perform the calculation to find the estimated number of students.\newlineEstimated number of students = 0.2333×1143≈2670.2333 \times 1143 \approx 267 (rounded to the nearest whole number)

More problems from Experimental probability

Question
You roll a 66-sided die two times. What is the probability of rolling a number greater than \(3\) and then rolling a number less than \(4\)? Write your answer as a percentage. \newline____ `%`
Get tutor helpright-arrow

Posted 5 months ago

Question
There are 99 college students running for student government class president. The candidates include 77 education majors.\newlineIf 66 of the candidates are randomly chosen to give the first 66 speeches, what is the probability that all of them are education majors?\newlineWrite your answer as a decimal rounded to four decimal places.
Get tutor helpright-arrow

Posted 8 months ago

Question
In an experiment, the probability that event A A occurs is 27 \frac{2}{7} , the probability that event B B occurs is 79 \frac{7}{9} , and the probability that events A A and B B both occur is 19 \frac{1}{9} .\newlineAre A A and B B independent events?\newlineChoices:\newline(A) yes\text{yes}\newline(B) no\text{no}
Get tutor helpright-arrow

Posted 8 months ago

Question
At a science museum, visitors can compete to see who has a faster reaction time. Competitors watch a red screen, and the moment they see it turn from red to green, they push a button. The machine records their reaction times and also asks competitors to report their gender.\newlineThe probability that a competitor reacted in over 0.70.7 seconds is 0.60.6, the probability that a competitor was female is 0.40.4, and the probability that a competitor reacted in over 0.70.7 seconds and was female is 0.30.3.\newlineWhat is the probability that a randomly chosen competitor reacted in over 0.70.7 seconds or was female?\newlineWrite your answer as a whole number, decimal, or simplified fraction.\newline______
Get tutor helpright-arrow

Posted 8 months ago

Question
A restaurant server claims that \(28\)% of the time he leaves candy with the bill, the customer tips well. \newlineIf the server's claim is true, and one day he leaves candy with \(4\) customers' bills, what is the probability that exactly \(3\) of those customers will tip well?\newlineWrite your answer as a decimal rounded to the nearest thousandth.
Get tutor helpright-arrow

Posted 7 months ago

Question
There is a spinner with `50` equally likely sections, numbered from `1` to `50`. You have the opportunity to spin it. If the number is odd, you win $`11`. If the number is even, you win nothing. If you play the game, what is the expected payoff?\(\$\)_____
Get tutor helpright-arrow

Posted 8 months ago

Question
There are two different raffles you can enter.\newlineIn raffle A, one ticket will win a `$720` prize, and the other tickets will win nothing. There are 1,0001,000 in the raffle, each costing `$11`.\newlineRaffle B is for a `$370` prize. Out of 125125 tickets, each costing `$5`, one ticket will win the prize, and the other tickets will win nothing.\newlineWhich raffle is a better deal?\newlineChoices:\newline[A]Raffle A\text{[A]Raffle A}\newline[B]Raffle B\text{[B]Raffle B}
Get tutor helpright-arrow

Posted 8 months ago

Question
XX is a normally distributed random variable with mean 4949 and standard deviation 2525.\newlineWhat is the probability that XX is between 2424 and 7474??\newlineUse the 0.68−0.95−0.9970.68-0.95-0.997 rule and write your answer as a decimal. Round to the nearest thousandth if necessary.\newline____
Get tutor helpright-arrow

Posted 8 months ago

Question
XX is a normally distributed random variable with mean 6565 and standard deviation 88.\newlineWhat is the probability that XX is between 6262 and 6868??\newlineWrite your answer as a decimal rounded to the nearest thousandth.\newline____
Get tutor helpright-arrow

Posted 8 months ago

Question
Complete the statement. Round your answer to the nearest thousandth.\newlineIn a population that is normally distributed with mean 4343 and standard deviation 33, the bottom 30%30\% of the values are those less than ______.
Get tutor helpright-arrow

Posted 8 months ago

View all (98)

Related topics

Algebra - Order of OperationsAlgebra - Distributive Property`X` and `Y` AxesGeometry - Scalene TriangleCommon MultipleGeometry - Quadrant