Communication At the Grand Central Terminal, a landmark railroad station in New York City, a pollster conducted a survey of 1000 commuters and the following data were collected: 680 people had an Apple iPhone, 600 people had a digital camera, and 560 people had a laptop computer, while 360 people had an Apple iPhone and a digital camera, 380 people had a digital camera and a laptop computer, and 370 people had an Apple iPhone and a laptop computer. Two hundred forty people had all three devices.
a. How many of the commuters did not have a digital camera?
b. How many of the commuters had an Apple iPhone or a digital camera?
c. How many of the commuters had only a laptop computer?
d. How many of the commuters had an Apple iPhone and a digital camera, but not a laptop computer?
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.