Mathematics, 05.12.2019 16:31 tristanf123
Aschool bus has 25 seats, with 5 rows of 5 seats. 15 students from the first grade and 5 students from the second grade travel in the bus. how many ways can the students be seated if all of the second-grade students occupy the first row?
a. 25p20
b. 5p5 × 20p15
c. 5c5 × 25c14
d. 5p5 × 15p15
e. 5p5 × 25c15
Answers: 3
Mathematics, 21.06.2019 19:30, jossfajardo50
Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics
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Mathematics, 21.06.2019 21:30, girlysimbelieve
Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent. the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244
Answers: 1
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