Mathematics, 28.01.2020 02:31 officialrogerfp3gf2s
Asurvey of 120 college students is conducted and the results displayed below show that 90 students have a smartphone, 45 have a tablet, and 10 have neither. fill in the empty table cells in the two-way frequency table.
smartphone no smartphone total
tablet 45
no tablet 10
total 90 120
what is the probability (rounded to the nearest whole percent) that a randomly selected college student has a tablet but not a smartphone?
a.) 20%
b.) 5%
c.) 17%
d.) 67%
Answers: 1
Mathematics, 21.06.2019 17:20
Given: hf || jk; hg ? jg prove: fhg ? kjg to prove that the triangles are congruent by asa, which statement and reason could be used as part of the proof? fgh ? kgj because vertical angles are congruent. jkg ? hfg because vertical angles are congruent. fhg ? jkg because right angles are congruent. hfg ? kjg because alternate interior angles are congruent.
Answers: 1
Mathematics, 21.06.2019 17:30
33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.
Answers: 1
Asurvey of 120 college students is conducted and the results displayed below show that 90 students h...
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