Mathematics, 20.03.2020 12:52 Armendariz1
Students who have completed a speed reading course have reading speeds that are normally distributed with a mean of 950 words per minute and a standard deviation equal to 200 words per minute. If 10 students are selected at random, what is the probability that at most two of them would read at less than 850 words per minute
Answers: 3
Mathematics, 21.06.2019 18:50, karen718
Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15
Answers: 1
Mathematics, 21.06.2019 23:00, tfyvcu5344
The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z
Answers: 2
Students who have completed a speed reading course have reading speeds that are normally distributed...
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