Mathematics, 21.10.2020 17:01 stormmesa1
4. A recent survey showed that a majority of Americans plan on doing their holiday shopping
online because they don’t want to spend money on gas driving from store to store (SOASTA
website, October 24, 2012). Suppose we have a group of 10 shoppers; 7 prefer to do their holiday
shopping online and 3 prefer to do their holiday shopping in stores. A random sample of 3 of
these 10 shoppers is selected for a more in-depth study of how the economy has impacted their
shopping behavior.
a. what is the probability that exactly 2 prefer shopping online?
b. what is the probability that the majority (either 2 or 3) prefer shopping online?
Answers: 2
Mathematics, 21.06.2019 21:30
Which equation is true? i. 56 ÷ 4·7 = 82 ÷ (11 + 5) ii. (24 ÷ 8 + 2)3 = (42 + 9)2 neither i nor ii ii only i and ii i only
Answers: 1
Mathematics, 22.06.2019 00:30
Will mark ! (10 points also! ) if x varies inversely with y and x =6 when equals y= 10, find y when x=8 a. y=4.8 b. y=7.5 c. y=40/3 d. y=4/15
Answers: 1
Mathematics, 22.06.2019 01:00
Which of the following is another way to express the difference between -5 and 8?
Answers: 1
Mathematics, 22.06.2019 02:30
Solve the system of equations. y=3x-1 and y=-2x+9. show work
Answers: 1
4. A recent survey showed that a majority of Americans plan on doing their holiday shopping
online...
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