Mathematics, 22.10.2019 19:00 Valduarte07
John runs at a rate of 12 laps in 8 minutes while sam runs a rate of 24 laps in 18 minutes
what is the unit rate for john.
what is the unite rate for sam.
who runs faster? explain
Answers: 2
Mathematics, 21.06.2019 18:00
Acompany wants to reduce the dimensions of its logo by one fourth to use on business cards. if the area of the original logo is 4 square inches, what is the area of the logo that will be used on the business cards?
Answers: 1
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
Mathematics, 22.06.2019 02:00
Student representatives surveyed their classmates on their preference of a school mascot for a new school. the results are shown in the table below. which pair of samples seems most representative of student preference?
Answers: 2
John runs at a rate of 12 laps in 8 minutes while sam runs a rate of 24 laps in 18 minutes
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