Mathematics, 25.03.2021 16:30, kprincess16r
An electronics store advertises that one lucky customer will be given a television at the store's 10th anniversary celebration. On the day of the celebration, 150 customers, of which 82 are less than 30 years old and 68 are 30 years old or more, complete a form to enter for the chance to win the television. The manager of the store wants to select the winner by drawing a form out of a box, but the box can only hold 100 forms.
Which method ensures both that the manager can use the box for the selection and that each customer has a fair chance of winning?
A.
Divide the forms into two lots based on age. Then, randomly select one of the lots and place it in the box. Randomly select the winning customer's form out of the box.
B.
Randomly divide the 150 forms into three equal-sized lots. Then, randomly select two of the lots and place them in the box. Randomly select the winning customer's form out of the box.
C.
Randomly divide the 150 forms into five equal-sized groups. Then randomly select 4 of the groups and place them in the box. Randomly select the winning customer’s form out of the box.
D.
Sort the forms alphabetically by last name. Then, place the first 100 forms into the box. Randomly select the winning customer's form out of the box.
Answers: 3
Mathematics, 21.06.2019 21:00, Kekkdkskdkdk
Out of $20$ creepy-crawly creatures in a room, $80\%$ are flies and $20\%$ are spiders. if $s\%$ of the total legs belong to spiders, what is $s$?
Answers: 2
Mathematics, 21.06.2019 23:00, alexianunez15
Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?
Answers: 2
An electronics store advertises that one lucky customer will be given a television at the store's 10...
Computers and Technology, 05.12.2020 15:00
Social Studies, 05.12.2020 15:00
Chemistry, 05.12.2020 15:00
English, 05.12.2020 15:00
Biology, 05.12.2020 15:10
Medicine, 05.12.2020 15:10
Mathematics, 05.12.2020 15:10