Mathematics, 10.12.2020 03:10 gabbymcdermid
Ariah has a spinner that has 10 equal sections, each containing a different number from 1 to 10. Mariah determines about how many times the spinner will land on a number that is greater than 7 in 250 spins, and her work is shown below.
P (number greater than 7) = StartFraction Number greater than 7 over Total number of sections EndFraction times number of spins = StartFraction 4 over 10 EndFraction (250) = 100.
What mistake did Mariah make, if any?
Mariah has the formula reversed; it should be the total number of sections over the numbers greater than 7.
Mariah should have used a 3 in the numerator because there are 3 numbers greater than 7.
Mariah should multiply by the number of sections in the spinner rather than the total number of spins.
Mariah calculated the prediction correctly and did not make any mistakes.
Answers: 3
Mathematics, 21.06.2019 14:30
Multiply −2x(6x^4−7x^2+x−5) express the answer in standard form. enter your answer in the box.
Answers: 3
Mathematics, 21.06.2019 17:00
Aquantity with an initial value of 3900 decays exponentially at a rate of 35% every hour. what is the value of the quantity after 0.5 days, to the nearest hundredth?
Answers: 1
Mathematics, 21.06.2019 17:20
Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?
Answers: 2
Mathematics, 21.06.2019 19:30
Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?
Answers: 1
Ariah has a spinner that has 10 equal sections, each containing a different number from 1 to 10. Mar...
Mathematics, 06.12.2019 17:31
Biology, 06.12.2019 17:31
Computers and Technology, 06.12.2019 17:31
Social Studies, 06.12.2019 17:31
English, 06.12.2019 17:31
Mathematics, 06.12.2019 17:31
Mathematics, 06.12.2019 17:31
English, 06.12.2019 17:31