Mathematics, 05.02.2021 06:10 SuperWoman9172
3. A cell phone plan costs $0.20 cents per minute. Lisa
has budgeted $35 a month for her cell phone. How
many minutes Lisa can use each month?
Answers: 1
Mathematics, 21.06.2019 19:30
Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?
Answers: 1
Mathematics, 21.06.2019 19:30
What is the result of adding the system of equations? 2x+y=4 3x-y=6
Answers: 2
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
3. A cell phone plan costs $0.20 cents per minute. Lisa
has budgeted $35 a month for her cell phone...
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