Mathematics, 24.11.2020 17:00 naansah52631
The ratio of boys to girls in math classes is 3.5. If there are 130 girls in these classes, how many boys must there be?
Answers: 3
Mathematics, 21.06.2019 18:00
The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?
Answers: 3
Mathematics, 21.06.2019 18:00
Solve this equation using substitution. {4x + y = β2} {4x + 6y = 44}
Answers: 1
Mathematics, 21.06.2019 19:30
We just started the introduction into circles and i have no idea how to do this.
Answers: 3
Mathematics, 21.06.2019 21:30
In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?
Answers: 1
The ratio of boys to girls in math classes is 3.5. If there are 130 girls in these classes, how many...
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