subject
Mathematics, 26.01.2021 01:30 carolinamleal04

Twelve of the last 16 winners of the school science fair have been seventh grade students. Mona placed 3 red marbles and 1 green marble in a bag to create a simulation to predict whether future science fair winners will be seventh graders. According to Mona’s model, what is the probability that the next 4 winners will all be seventh grade students?

StartFraction 3 over 16 EndFraction

StartFraction 81 over 256 EndFraction

Three-fourths

StartFraction 7 over 8 EndFraction

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 17:30
Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.
Answers: 2
question
Mathematics, 21.06.2019 18:30
The clayton family’s pool has vertices at the coordinates (0, 2), (0, 5), (2, 5), (2, 6), (5, 6), (5, 1), (2, 1), and (2, 2). if each grid square has an area of 9 square feet, what is the area of the pool?
Answers: 1
question
Mathematics, 21.06.2019 21:40
Will mark name all segments skew to bc
Answers: 2
question
Mathematics, 21.06.2019 21:40
Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.
Answers: 1
You know the right answer?
Twelve of the last 16 winners of the school science fair have been seventh grade students. Mona plac...
Questions
question
Mathematics, 21.01.2022 21:20
question
Mathematics, 21.01.2022 21:20
question
Social Studies, 21.01.2022 21:20
question
Mathematics, 21.01.2022 21:20
question
English, 21.01.2022 21:20