Mathematics, 06.07.2019 21:30 thezbell
Ageologist has collected 10 specimens of basaltic rock and 10 specimens of granite. if the geologist instructs a laboratory assistant to randomly select 15 of the specimens for analysis, what is the pmf of the number of basalt specimens selected for analysis? what is the probability that all specimens of one of the two types of rock are selected for analysis?
Answers: 1
Mathematics, 21.06.2019 15:00
Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number
Answers: 2
Mathematics, 21.06.2019 17:30
Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?
Answers: 1
Mathematics, 21.06.2019 21:20
An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.
Answers: 2
Ageologist has collected 10 specimens of basaltic rock and 10 specimens of granite. if the geologist...
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