Mathematics, 31.07.2019 10:30 jpimentel2021
The table below shows data from a survey about the amount of time students spend doing homework each week. the students were either in college or in high school: high low q1 q3 iqr median mean σ college 50 5 7.5 15 7.5 11 13.8 6.4 hs 16 0 9.5 14.5 5 13 . 10.7 5.3 which of the choices below best describes how to measure the spread of this data? (hint: use the minimum and maximum values to check for outliers.) (2 points) a: both spreads are best described with the iqr. b: both spreads are best described with the standard deviation. c: the college spread is best described by the iqr. the high school spread is best described by the standard deviation. d: the college spread is best described by the standard deviation. the high school spread is best described by the iqr.
Answers: 1
Mathematics, 21.06.2019 21:30, Brendah7145
Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?
Answers: 1
Mathematics, 21.06.2019 21:30, amesha62
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 01:30, heidiallen565
Arace is 10 kilometers long. markers will be placed at the beginning and end of the race course and at each 500 meter mark. how many markers are needed to mark the course for the race?
Answers: 3
The table below shows data from a survey about the amount of time students spend doing homework each...
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