Mathematics, 18.03.2021 02:20, scottbrandon653
Mr. Fowler's science class grew two different varieties of
plants as part of an experiment. When the plant samples
were fully grown, they compared their heights.
Plant variety Height of plant (inches) Mean Mean absolute
deviation (inches)
Variety A
16, 18, 19, 17, 20
18
1.2.
Variety B
18, 11, 13, 13, 15
14
2
Based on these data, which statement is true?
A. The average height of variety A is greater but varies less than that
no
Answers: 2
Mathematics, 21.06.2019 15:00, kalebstone8357
Find the product of (4x + 3y)(4x − 3y). 16x2 − 24xy + 9y2 16x2 − 9y2 16x2 + 24xy + 9y2 16x2 + 9y2
Answers: 1
Mathematics, 21.06.2019 18:50, casianogabriel2004
Which expression shows the sum of the polynomials with like terms grouped together
Answers: 2
Mathematics, 21.06.2019 23:30, bbby2
Aprisoner is trapped in a cell containing three doors. the first door leads to a tunnel that returns him to his cell after two days of travel. the second leads to a tunnel that returns him to his cell after three days of travel. the third door leads immediately to freedom. (a) assuming that the prisoner will always select doors 1, 2 and 3 with probabili- ties 0.5,0.3,0.2 (respectively), what is the expected number of days until he reaches freedom? (b) assuming that the prisoner is always equally likely to choose among those doors that he has not used, what is the expected number of days until he reaches freedom? (in this version, if the prisoner initially tries door 1, for example, then when he returns to the cell, he will now select only from doors 2 and 3.) (c) for parts (a) and (b), find the variance of the number of days until the prisoner reaches freedom. hint for part (b): define ni to be the number of additional days the prisoner spends after initially choosing door i and returning to his cell.
Answers: 1
Mr. Fowler's science class grew two different varieties of
plants as part of an experiment. When th...
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