Mathematics, 30.01.2020 15:43 364781
Suppose 67% of all teenagers own a laptop and 29% of all teenagers own a laptop and a tablet. what is the probability that a teenager owns a tablet given that the teenager owns a laptop?
a) 19%
b) 38%
c) 43%
d) 96%
Answers: 1
Mathematics, 21.06.2019 15:00, m4167281
Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?
Answers: 1
Mathematics, 21.06.2019 18:00, santosv3136
What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15
Answers: 1
Mathematics, 21.06.2019 18:20, acharity196
Do social recommendations increase ad effectiveness? a study of online video viewers compared viewers who arrived at an advertising video for a particular brand by following a social media recommendation link to viewers who arrived at the same video by web browsing. data were collected on whether the viewer could correctly recall the brand being advertised after seeing the video. the results are given below. correctly recalled the brandarrival 409153browsing20484b. conduct the hypothesis test, using the 0.025 level of significance. what is the value of the test statistic? χ2stat=what is the p-value? p-value=is this value significant atα=0.025?
Answers: 2
Suppose 67% of all teenagers own a laptop and 29% of all teenagers own a laptop and a tablet. what i...
Chemistry, 20.09.2020 17:01